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ORIGINAL -PUBLIC FILE <br />(Page 2) <br />MINE ID # OR PROSPECTING ID #: ti+-ieRn-yea <br />INSPECTION DATE: 'i/I'i/n7R.'i/~ ~n7 INSPECTORS INITIALS: ~~ <br />OBSERVATIONS <br />The Division conducted a monthly monitoring inspection of the site on 3/ 13/ 07. Present <br />during the inspection were Tim Commer & Mark Vannoni of CC&V. Prior to the inspection, <br />Gary Goodrich informed the Division that due to the operational solution content rising at <br />the Phase I pregnant solution collection storage area, CC&V was pumping solution to the <br />Phase II pregnant solution collection storage area utilizing pipes. CC&V fully understands <br />that these are temporary measures and that pumping solution using the caissons was never <br />the intended practice. CC&V also µnderctands that operational capacity of the ponds CAN <br />NOT 8XC8ED 80$OF TOTAL STORAGE. <br />Inspected the Phase I, II, II&IV Leach pad areas and collected the following readings from <br />the High and Low 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) as reported by Gary, solution from the preg. Pond was being pumped <br />to the Phase II preg. Pond. #2 was at 50.5 and # 3 was at 51.3 piezometer for the pond was <br />at 60.3 feet. Low Volume solution collection transducer #1 was recorded at .32 and # 2 was <br />at .60. Phase II &III High Volume solution Collection transducer # 4 was recorded at 35.0 <br /># 5 was at (55.7) according to CC&V, THE transducer short circuited when they started <br />pumping solution using the caissons and the reading was not accurate. Solution was being <br />pumped with excessive splatter. Since the design was not to be utilized as such, it will <br />be sited as a possible problem. However the 80~ capacity of the pond was never exceeded. <br />In addition to transducer # 5, there are two other transducers and a piezomete for the <br />pond which showed it to be well below the 80& capacity. # 6 was at 35.6. Piezometer for <br />the pond was at 36.5 feet. Low volume transducer # 1 was at.13 and #2 was at.46. <br />Phase IV High Volume Solution Collection Transducer # 7 was recorded at 34.2, #8 was at <br />27.5, #9 was at 28.8 and # 10 (pipe) was at 26.5. Low Volume transducer # 1 was at 11.7 <br />and # 2 was at 4.5 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 12.4 and <br /># 2 was at 13.7 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 during last <br />inspection report dated 2/27/07. <br />After the site inspection talked to Mr. Kevin Rielly and Denny Demmer of the process <br />oepertions managers. They stated that at present they were pumping approximately 800 gpm <br />to Phase II pond and that the volume in phase I pond was dropping. Mr. Rielly also stated <br />that they have also changed the ore stacking sequence so the solution will not report as <br />rapidly to the ponds as it did this time. <br />ON 3/14/07 MET ON SITE AND LOOKED AT THE POND LEVELS, WITH Mr. Denny Demmer, Kevin Rielly, <br />Gary Goodrich and Tim Commer present. <br />Phase I HIGH VOLME SOLUTION COLLECTION TARNSDUCER I WAS STILL NOT FUNCTIONING. # 2 WAS AT <br />51.0 AND #2 WAS AT 51.9. PIEZOMTER WAS REDAING AT 61.4. The 80~ operational level for the <br />pond was never exceeded at any time during this incident. <br />PHASE II HIGH VOLUME SOLUTION COLLECTION TRANSDUCER # 4 WAS AT 34.8 # 5 WAS AT 35.2 AND # <br />6 WAS AT 35.6. PIEZOMETER FOR THE POND WAS AT 36.5 FEET. Mr. Rielly stated that their <br />previous assumption that transducer # 5 was short circuited was in error. Once it dried up <br />it started functioning as designed. There was also less splatter from solution being <br />pumped in to the pond from the phase I preg pond. <br />The Division fully understands that CC&V HAS ALL THE OPTIONS to move solutions from one <br />pond to the other to make sure that the 808 operational levels for the ponds are never <br />exceeded. However, it is also up to CC&V to make sure all transducers are functioning as <br />designed and that these caissons were never designed for pumping solution into and out of <br />