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amec' <br />Earth 8 Environmental <br />B) LOB Storm Water Culverts <br />Installation of the 42" culvert began this week. A trench for the culverts was excavated <br />approximately halfway across the existing haul road using a CAT 345 excavator. Pipe Bedding <br />Material was placed in the trench using a CAT 345 excavator. The material was then moisture <br />conditioned and compacted using a walk-behind sheep's foot compactor. Three nuclear density <br />tests were performed with results averaging 97% of maximum dry density. Two 60-foot runs (four <br />30 foot sections) were installed on the Pipe Bedding Material. Pipe bedding material was then <br />placed in 12" compacted lifts on each side and between the culverts, bringing the backfill up <br />evenly. Three nuclear density tests were performed as the backfill progressed with results <br />averaging 96% of maximum dry density. Installation of the culverts will continue into next week. <br />CQA ACTIVITIES: <br />SUMMARY: <br />Field Observation Summary <br />The CQA activities performed consisted of observing, documenting and recording the construction <br />activities of the contractor. <br />AMEC observed fill placement on the LOB Pad and LOB Delivery Road throughout the week. <br />AMEC observed confirmatory drilling north of Underground Working #2016. <br />AMEC observed the ongoing remediation of Underground Workings #2016 and #2040. <br />AMEC observed the LOB Storm Water Culvert installation. <br />AMEC observed excavation from Conveyor Corridor #3, including Underground workings located in the <br />area. <br />Laboratory Testing Summary <br />Laboratory testing continues (Particle Size Distribution, Atterberg Limits, and Moisture-Density <br />Compaction testing) for sampled materials. A summary of sampled materials and test results is available <br />upon request. <br />GENERAL PROJECT ITEMS <br />Summary of Concerns: <br />No Concerns <br />Summary of Planning Items: <br />Cut and fill will continue at Conveyor Corridor #3. <br />Remediation of Underground Workings #2016 and #2040 will continue. <br />Final grading of the LOB Delivery Road is to continue. <br />Remediation of the stope between #2015 and #2016 will continue. <br />Summary of Non-conformances: <br />Sheet 3 of 8 <br />LOB Weekly Report WE 06.06.09.D.doc