Laserfiche WebLink
ORIGINAL -PUBLIC FILE <br />(Page 2) <br />MINE ID # OR PROSPECTING ID #: nn_tostn_~ed <br />INSPECTION DATE: I~~~06 INSPECTOROS INITIALS: AIL <br />9 <br />OBSERVATIONS <br />The Division conducted a bi-monthly monitoring inspection of the site on12/19/06.On <br />12/18/09, late afternoon, Mr. Goodrich informed the Division that a minor tear in the IIN- <br />CBRIFIHD liner, near the load out bin area occurred during a maintenance operation, <br />initiated by MSHA. <br />The inspection began near the load out bin area where a tear in the liner occurred as <br />reported by Mr. Goodrich on 12/18/06. This portion of the lined area even though is part <br />of Phase IVC, was not Certified for application of solution in anticipation of the Load <br />Out Bin moving from the current position to the North East of Phase IVC Certified lined <br />area. It was anticipated that the load out bin would be moved by mid 2007, and the small <br />portion of the area covered by the current load out bin, would be checked by the design <br />and certifying engineer and conduct whatever repair work that would be needed and <br />certified in accordance with the approved specification under Amendment # 8 approval, <br />prior to application of solution. <br />According to Jeff Campbell, the tear occurred when MSHA requested the material build up in <br />the area be moved so it will not have access to anyone to go over the fence under the <br />conveyer system. The person who was operating the front end loader apparently was not <br />aware or utilizing the map, for the area which shows clearly the line of demarcation where <br />liner begins. In addition, to CC&V's credit, a metal post is placed around the liner edge <br />of all the leach pad facility, every 20 feet or so telling operators of machine where the <br />liner edge begins. Apparently this operator was not aware, and because no solution was <br />being applied in this area, assumed there was no liner. <br />However, the Division informed CC&V to make sure people are aware where liner edge is <br />located prior to operating machinery. CC&V agreed normally that is the case and the posted <br />signs are always a good indicator, but this was initiated during an MSAH inspection and in <br />their haste to comply with MSHA'S wishes the incident occurred. <br />Inspected the Cresson pit Ares. The South and East Cresson's were active, storm water <br />diversion structures in the area were found to be in good repair. Inspected the Phase <br />I,II,II&IV Leach pad areas and collected the following readings from the High and Low <br />Volume Solution Collection Transducers. <br />Phase I High Volume Solution Collection Transducer #1 was recorded at 7.0 (read out meter <br />still not functioning) #2 was at 49.7 and # 3 was at 49.0 piezometer for the pond was at <br />56.5 feet. Low Volume solution collection transducer #1 was recorded at .48 and # 2 was at <br />.54. <br />Phase II &III High Volume solution Collection transducer # 4 was recorded at 29.8 # 5 <br />was at 22.4 and # 6 was at 32.5. Piezometer for the pond was at 34.3 feet. Low volume <br />transducer # 1 was at .14 and #2 was at.46. <br />Phase IV High Volume Solution Collection Transducer # 7was recorded at 20.7, #8 was at <br />20.3, #9 was at 22.7 and # 10 was at 22.7. Low Volume transducer # 1 was at16.8 and # 2 <br />was at 5.1 inches of hydrostatic head. <br />Inspected the External pond, it was holding a small amount of what appeared to be frozen <br />water .Low volume Solution Collection transducer # 1 for the pond was recorded at 11.7 and <br /># 2 was at 10.2 inches of hydro static head. <br />Inspected the under drain area, both the south and 4 inch pipes were discharging. The <br />north under drain and solid 24 inch pipes were dry. All lower ponds were holding about the <br />same amount of what appeared to be frozen water covered with snow as was noted last week. <br />