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III. COMMENTS -COMPLIANCE <br />Below are comments on the inspection. The comments include discussion of observations made <br />during the inspection. Comments also describe any enforcement actions taken during the inspection <br />and the facts or evidence supporting the enforcement action. <br />Haul Road 2 into the Coal Creek channel, just downstream from the Riprap Transition <br />Structure. The large riprap should be extended to the Coal Creek channel bottom. <br />Another maintenance location is at the grated concrete drain structure near the Guard <br />Shack at the South Portal lower facilities area. The drain conveys disturbed drainage <br />from the bermed depression north of the guard shack into a culvert that drains into <br />Pond 8. Although the system remains functional and the culvert is unobstructed, there <br />is some sediment build-up in the concrete drain, which should be cleaned out. <br />• There is minor side-cutting in a few locations along the Coal Creek channel diversion <br />segment, but the erosion is not significant and does not threaten pond embankments or <br />other structures at this time. Upon final reclamation and removal of Ponds 6 and 70, <br />channel meanders which more closely mimic the original channel will be restored, and <br />the long term stability of the channel should be improved. <br />0 Minewater Discharge 076 gravity flow dewatering system appeared to be functioning <br />as designed. Discharge water was clear, and flow was approximately 280 gpm when <br />checked at approximately gpm on the afternoon of Juna 25. Flood damage in the 016 <br />drill site vicinity, which occurred due to the Ute Water Line break earlier in the year, has <br />been properly repaired. Sediment accumulations were cleaned out, erosion was <br />repaired, and affected areas were properly roughened and seeded. The SAE silt fence <br />was properly replaced. <br />Backfill and Grading <br />Detailed grade checks or evaluations were not made, but graded areas at the various <br />reclamation sites, including North Portal, North Decline, 2 West Portals, South Fan, "B" <br />Substation Site, CBA-1, CBA-2 and RSRDA Soil Borrow Areas, powder magazine road, and <br />conveyor corridor appeared to be stable. There were no indications of sliding, slumping, or <br />excessive erosion. Reclaimed drainage channels appeared to be stable and functional, with <br />no segments of excessive downcutting or sediment accumulation. Backfilling and grading <br />within all or portions of these sites (with the exception of the conveyor corridor and CBA-2 <br />Soil Borrow Area) was evaluated as a component of the Phase 7 Bond Release (SL-21 in <br />2003. <br />Processing Waste <br />CRDA-1, CRDA-2, and RSRDA benches, terrace drains, and perimeter ditches were walked, <br />and no problems were noted. CRDA-1 seep locations were dry, as was the underdrain <br />outlet in Sediment Pond 6. There were no indications of instability, and no areas of <br />significant erosion. Check of 1" quarter 2004 piezometer data indicated no exceedances of <br />designated critical water levels, and no such exceedances have been indicated by previous <br />monitoring. Construction, cover placement, and drainage control were evaluated for the <br />2 <br />