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AWN& <br />lam: <br />Location This Week <br />(tons) Cumulative <br />(tons) Comments <br />So Cresson Clay Processing 5,159 150,273 <br />Squaw Gulch Processing 0 35,816 Processing in area complete. <br />Total 5,159 182,181 <br />H) ADR and Crusher Waterlines <br />Construction of the temporary ADR waterlines continued near station E22+00 (+/-), approximately <br />100 feet right of centerline to 50 left of centerline. The trench was backfilled with material <br />removed from the trench during excavation using a CAT 330 excavator and a CAT 966 front-end <br />loader. Approximately 300 linear feet (two lengths of 150 feet) of HDPE pipe was placed in the <br />trench and air pressure tested. The pipe was then backfilled using pipe bedding material compacted <br />using the CAT 330 excavator bucket. Structural fill was then used to backfill the remainder of the <br />trench. <br />Hydrostatic testing of the 12" HDPE ADR waterline (station A24+00 (+/-) to the new ADR water <br />tank) was performed. The line was pressurized to 180 psi (1.5 x operating pressure) and held the <br />pressure for one hour. This meets the CEntry project specification. The testing was performed <br />under the observation of an AMEC field representative. <br />Construction of the ADR tank overflow line continued. Trench excavation was performed using a <br />CAT 330 excavator. Pipe bedding placement was also performed as the trench excavation <br />progressed. This was performed using a CAT 966 front-end loader and a CAT 330 excavator. <br />Approximately 100 linear feet of trench was excavated and bedded. <br />Construction of air/vacuum valves, vaults, and other fittings continued through out the week. <br />Excavation of the Bull Hill booster pump foundation was performed using a CAT 345 excavator. <br />I) Miscellaneous <br />No work performed during the week. <br />III) Underground Workings <br />A) Drilling <br />Confirmation drilling was performed at Underground Workings #3006 and #3007. A drill pattern <br />was established by an AMEC representative around the perimeter of the workings on four-foot <br />centers. Twelve holes were drilled during the week. Voids were encountered at eight hole locations <br />at depths between 0 and 39 feet. An approximate total of 600 feet was drilled during the week. The <br />perimeter of the workings was established excluding the northwest side (holes #25 thru #35) were <br />loose material was present. The loose material in the area made drilling difficult. After a <br />discussion with John Lupo, the limits of the loose material will be defined and the material will be <br />removed later. <br />B) Mine Shaft/Stope Remediation <br />No work performed during the week. <br />VLF Weekly Report WE 12.12.09.D.doc