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amec' <br />Earth & Environmental <br />Location This Week <br />(tons) Cumulative Comments <br />So Cresson Clay Processing 186 84,548 <br />Squaw Gulch Processing 0 35,816 Processing in area complete. <br />Total 186 120,364 <br />I) New ADR Water Tank and Waterline <br />Previously placed HDPE pipe and pipe bedding was backfilled using material removed during <br />trench excavation. Backfilling was performed using a CAT 345 track excavator, a CAT 966 front- <br />end loader, and a 10-ton vibratory smooth drum roller. <br />Trench excavation and pipe bedding placement continued for the new ADR/Crushing water line <br />using a CAT 330 excavator and a CAT 966 front-end loader. <br />J) Miscellaneous <br />Exposing of the old Phase IV solution lines at the northeast corner of the facility continued using a <br />CAT 330 excavator and a John Deere 35D track excavator. Areas were cover over the existing <br />Phase IV geomembrane was assumed to be less than 6 feet were test pitted, with the constant <br />observation by an AMEC representative. The excavations were performed using a John Deere 35D <br />excavator. No liner was encountered during the excavations. <br />Removal of the old solution lines continued today by cutting the welds in the lines using an <br />oxy/acetylene cutting torch. <br />III) Underground Workings <br />A) Drilling <br />No work performed during the week. <br />B) Mine Shaft/Stope Remediation <br />No work performed during the week. <br />C) Lateral/Slot Remediation <br />No work performed during the week. <br />IV) Storm Water Management Structures <br />A) Control Structures <br />No work performed during the week. <br />B) Best Management Practices <br />Best Management Practices are being observed throughout the VLF Phase 5 Project. Storm water <br />controls were maintained throughout the week. Precipitation was not substantial during the week. <br />V) VLF Geosynthetics <br />No work performed during the week. <br />VLF Weekly Report WE 09.18.09.D.doc