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Location <br />This Week <br />(tons) <br />Cumulative <br />(tons) <br />Comments <br />E Cresson Clay Processing <br />4,355 <br />63,741 <br />S Cresson Clay Processing <br />0 <br />201,199 <br />Processing in area complete. <br />Squaw Gulch Processing <br />0 <br />35,816 <br />Processing in area complete. <br />Total <br />4,355 <br />294,145 <br />Location <br />This Week <br />(tons) <br />Cumulative <br />(tons) <br />Comments <br />Dump 4 LVSCF Processing <br />17,729 <br />265,653 <br />• <br />amec <br />Earth & Environmental <br />2) Low Volume Solution Collection Fill Material (LVSCF) <br />Processing of Low Volume Solution Collection Fill material continued at the Dump 4 LVSCF <br />Process. A CAT D -10 dozer and a skid steer loader were used to process the material. <br />G) Miscellaneous <br />No work was performed during the week. <br />III) Underground Workings <br />A) Drilling /Excavation <br />No work was performed during the week. <br />B) Mine Shaft /Stope Remediation <br />Remediation of Underground Working #3009/ #3010 was completed with the placement of a three - <br />layer geogrid cap extending 50 feet from each working location. Prior to placement, the subgrade <br />surface was inspected and accepted by an AMEC field representative. Approximately 19,616 <br />square feet of geogrid was placed and accepted by an AMEC field representative prior to select <br />structural fill placement. Approximately 470 cubic yards of select structural fill was then placed <br />over the geogrid in one 6 -inch compacted lifts (over first and second layer) and one 1 -foot <br />compacted lift (over third layer). Prior to compaction the select structural fill material was <br />moisture conditioned using a CAT 773 water - truck. Compaction of the select structural fill was <br />then performed using a 10 -ton smooth drum compactor using the static method. Five nuclear <br />density tests were performed with results passing. Moisture - density relations were performed in <br />accordance with ASTM D698 -07. <br />Remediation of Underground Working #3012 continued backfilling the working with structural <br />fill. Structural fill was placed in the working using a CAT 345 excavator and the excavator bucket <br />was used for compaction until the area was safe to use a 10 -ton vibratory smooth drum compactor <br />passing over the entire surface at least four times. The material was moisture conditioned (when <br />necessary) using a CAT 773 water - truck. When the area was safe, the CAT 345 excavator cleaned <br />previously placed temporary fill from the remaining portion to the northwest. This section of the <br />working was inspected by AMEC representatives and the entire working was found to be <br />competent rock. John Lupo (AMEC Certifying Engineer) made the decision that concrete was not <br />necessary in this portion of the working. This portion of the working was then backfilled with <br />VLF Weekly Report WE 04.10.10.D <br />