2009-12-11_REPORT - M1980244 (4)

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ame. Earth & Environmental G) Material Processing 1) South Cresson Clay Processing Area Processing of Soil Liner Fill material continued at the South Cresson Clay Process. A CAT D- 8 dozer, a CAT 320 excavator, and a CAT 966 front -end loader were used to process the material. Location Week tons Cumulative Comments So Cresson Clay Processing 3,588 130,947 Squaw Gulch Processing 0 35,816 Processing in area complete. Total 3,588 166,763 H) ADR/Crushing Waterline Construction Continue excavating the ADR waterline between Stations A0 +00 ( + / -) and A3 +00 ( + / -). One CAT 345 excavator and one CAT 330 excavator equipped with a "rock breaker" were used for the trenching activities. Placed protective wrap on the 10 and 12 -inch steel pipe welds. I) Toe Berm Primary Underdrain Placed approximately 300 -feet of primary underdrain 6 -inch diameter CPe pipe. Pipe was encased in Geofabric and drain rock per Drawing A260 III) Underground Workings A) Drilling No work performed during the week. B) Mine Shaft /Stope Remediation Underground working 3008, Thompson Shaft: Completed structural fill and site grading for Geogrid placement per AMEC Memo, dated 10 November 2009. and per Drawing A290. Select structural fill was placed over each layer of Geogrid. Compaction was achieved using a 10 -ton vibratory smooth drum compactor passing over the entire surface a minimum of 5 passes. Nuclear density testing was performed with results averaging 95% of maximum dry density. Moisture density relations were obtained in accordance with ASTM D698 -07. AMEC provided full -time observation during the remediation C) Lateral/Slot Remediation No work performed during the week. IV) Storm Water Management Structures A) Control Structures No work performed during the week. B) Best Management Practices Best Management Practices are being observed throughout the VLF Phase 5 Project. Storm water controls were maintained throughout the week. VLF Weekly Report WE 11.21.09.D.doc