2009-04-13_REPORT - M1980244 (3)

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Alirlik amec Earth 8 Environmental CQA ACTIVITIES: SUMMARY: The CQA activities performed consisted of observing, documenting and recording the construction activities of the contractor. Double shift work activities for the past week were overburden rock excavation and transport to the Joe Dandy stockpile area. The work concentrated within the upper and mid sections of the LOB Delivery Road from station 28+00(+/-) advancing to station 26+00(+/-) and stations 16+00 (+/-) to 13+00 (+/-) The upper section of the LOB Delivery Road between approximate Stations 33+00 (+/-) to 30+00(+/-) has been drilled and shot this week. The LOB Delivery Road, adjacent to the LOB Pad, has approximately 40 feet of overburden rock left which will require additional drilling and blasting for removal. Rockbreakers has been working double shifts throughout the week, depending on weather. There was no SLF processing at SGOSA Dump 5. A new plant is due on site next week. The mine has been transporting clay to the South Cresson clay stockpile on an intermittent basis. The material screening plant located at the AGOSA (Arequa Gulch Overburden Storage Area) has been non operational most of the week. AMEC has witnessed the conformation drilling at underground workings 2019 and 2020. The backfilling of underground working 2039 was witnessed on a full-time basis. LOB Pad: Subgrade preparation has started with the importing of un-processed clay from SGOSA Dump 5. Laboratory Testing Summary: Laboratory testing continues (Gradations, Atterberg Limit, and Moisture-Density Relationships) for previously sampled materials, throughout the shift. Permeability testing continues at an off-site laboratory. Results from the permeability tests have indicated test results have met or exceeded the requirements as specified in the project documents have been obtained for testing. GENERAL PROJECT ITEMS Samples of clay from the South Cresson stockpile Summary of Concerns: No Concerns Summary of Planning Items: A new SLF plant will arrive sometime next week. Lone Star: Additional submittals are required for approval. The liner crew has completed MSHA training. Underground workings remediation in the LOB Pad area and LOB Delivery Road is on going as the sites are exposed and located. Underground workings within the planned conveyor alignment to the LOB Pad. Remediation will continue next week. Summary of Non-conformances: None Issued Summary of Meetings and Discussions: CC& V.• Sheet 4 of 11 LOB Weekly Report WE 04.04.09.D