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1 • MINE ID # OR PROSPECTING ID # INSPECTION DATE 8/2223/94 (Page 2) • M-80-244 INSPECTOR'S INITIALS JAP The Cresson Project Phase 1 heap leach pad, crusher, and upland diversion box culvert areas were inspected during this two day inspection. Jim Pendleton and Terry Manziac of Golder Construction Services, the lead QA/QC representative at the site discussed the cold weather procedures. John Hardaway of CC&V participated in a portion of the discussion. The discussion included the control procedures exercised by the Contractors (Ames & Gundle), the Control Engineer (Bateman), the QA/QC Representatives (Golder), and the Owner (CC&V). We also discussed appropriate methodology for determining air temperature, and for determining whether subgrade or fill materials were frozen. We also discussed the recertification of soil liner which has been placed, compacted and pronounced acceptable by the Contractor, but is then deteriorated by natural conditions prior to the deployment of geomembrane. Air temperature had dropped below freezing the previous night and snow and rain had fallen. No geomembrane liner was laid before noon. Gundle attempted to deploy liner after noon. However, wind prevented the deployment or seaming of geomembrane for the entire day of Thursday, September 22nd. while Mr. Hardaway participated in a CC4V staff meeting, Terry Manziac accompanied me on an inspection of the site at Mr. Hardaway's direction. We first inspected the Ironclad Tailings stockpile area. No Ironclad Tailings were being hypochlorite treated Thursday, September 22nd. Ames efforts were concentrating upon placing select fill on the toe dam and on grading the south facing slope of the heap leach pad area. Dale Ames, superintendent, projected recommencing Ironclad Tailings treatment on Monday, September 26th. The existing stockpile of treated tailings should suffice to face the upslope face of the toe dam, prior to deployment of welding of geomembrane liner fabric. A ten foot high berm of earthen material exists along the outer edge of the haul road between the tailings stockpile and the Ironclad pit. This is in the area where reject oversize was previously being discarded over the embankment edge into the pit. Mr. Hardaway later informed me that the material was excess road surface material which had been stockpiled to protect the hypochlorite storage area and to preclude accidental lose of material into the pit. Terry Manziac and I next inspected the area of geomembrane liner installation near the eastern end of the north facing slope of the Phase 1 pad. Gundle had ceased activity for the day due to windy conditions. Sufficient area for deployment of three or four panels of 34 foot wide geomembrane had been compacted and prepared for deployment of geomembrane liner. Additional soil liner had be placed but not final compacted. Sufficient area for deployment of two or three panels of geomembrane liner had also been prepared at the western extremity of the north facing Phase 1 pad elope, adjoining and above the toe dam. We also observed the work being conducted on the upstream elope of the toe dam. Ames was placing select fill on the surface of the crest and upstream facial elope of the toe dam. QA/QC personnel from Golder were conducting a nuclear gage compaction test on the select fill on the upstream face. We next observed the downstream sump below the toe dam. Approximately 5 gpm was flowing from the 24" solid underdrain pipe, which is currently carrying the Arequa Gulch channel flow from above the leach pad disturbance. The 24" perforated pipe, which collects seepage from the underdrain system appeared to be flowing approximately 15 gpm. Minor flow was also issuing from the underdrain rock into the sump. The 4" pipe, destined to carry the upstream Arequa Gulch flow, is capped at the upstream end and is carrying no flow, suggesting it ie intact and not leaking. The majority of Ames equipment ie occupied in excavating the remaining high portions of the south facing elope of the Phase 1 leach pad. A blast was fired at 1:30 pm. Ames personnel project one more blast will complete the excavation near the groin of the toe dam and the south facing pad elope. Several additional blasts should complete the remainder of the excavation of the majority of the south facing elope, with the exception of the high bedrock knob immediately north of the upper segment of Arequa Gulch. Dale Ames projected the completion of the subgrade excavation of the south facing elope by the end of next week, September 30th, with the exception of the bedrock knob previously mentioned. This will facilitate the fill placement and grading of the entire pregnant solution pool portion of the pad. After grading ie completed the select fill, leak detection system, and soil liner can be placed and compacted in preparation £or the first geomembrane layer. Terry Manziac and 2 returned to the office where i completed a close-out conference with Mr. Hardaway, following the completion o£ the CC6V staff meeting.