INSPEC43391 - Laserfiche WebLink

Home Browse Search

111. COMMENTS -COMPLIANCE Below are comments on the inspection. The comments include discussion of observations made during the inspection. Comments also describe any enforcement actions taken during the inspection and the facts or evidence supporting the enforcement action. Refuse area inspection began at the reclaimed RP-1 area. As was the case at most locations in the mine viciniTy, site conditions were very dry. Perennial grasses were largely dormant. Refuse azea slopes appeaz stable with no areas of significant erosion. Re-routing of the lower segment of the West Side collection ditch into the riprapped channel as requested in recent inspection reports had not been completed. This work needs to be performed as requested. A[ RP-2/3/4 haul trucks were not running during the inspection, and the pile was not being actively worked. Grading work had recently been conducted along the north end of the pile, and theoversteepened crest azeas had laggely been graded out. A number of the drainage maintenance items identified in recent inspections had been addressed by the operator, including grading of thegullied segment of the RP-4 west inlet ditch, stabilization of lower end of the steep segment of the West Perimeter Ditch (operator used coarse reject rock as a temporary measure), and clean-out of the West Perimeter Ditch segment just below the dozer crossing road. Refuse grading and compaction on the combined pile appeazed to be largely concurrent, with only a small number of truck dump piles to be spread, and some additional grading work to be completed on the outslopes associated with the crest reduction. At RP-SA, grading work was in progress, with two scrapers and a sheep's foot compactor being used. The scrapers were removing material from the north end of the temporarystockpile, and spreading the material in lifts primarily to the north and west of the temporary pile. Considerable progress had been made in reducing the temporary pile and building up the permanent fill since the previous inspection. Considerable dust was being generated by equipment activity (see discussion of NOV CV-2002-015), andand significant concerns were noted with regazd to refuse pile surface drainage (see discussion of NOV CV-2002-016). The Pond SA inlet azea erosion repairs previously requested had not yet been performed, however the modification of the lower end of Ditch SB as approved by recent technical revision had been properly implemented, Support Facilities Primary Support facilities in the D Portal Area, along the overland conveyor, theloadotit, the slot storage facility, the Halandras Landfill, the raw water lagoon, and various vent shafts were inspected. In general, the sites appeared to be properly managed in compliance with applicable regulations and permit requirements. At the recently completed WMVS shaft site near the raw water storage tank, a safety fence needs to be installed azound the elevated shaft, as noted in the previous inspection report. A small patch of Canada thistle was observed neaz the sediment trap for the active waste pit at the Halandras Landfill. Operator had previously made note of the patch and will include the patch in scheduled spray operations. Topsoil A more clearly mazked topsoil sign is needed for the small topsoil stockpile at the new rock dust shaft site As noted in recent inspections, some azeas of the south facing slopes of the refuse area topsoil and subsoil stockpiles have sparse vegetative cover, and re-seeding with stabilization mix should be undertaken this fall. Vegetative cover is particulazly lacking on the lower two beaches of the Topsoil Pile SA.