2011-08-26_REPORT - M1980244 (30)

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ameO Earth 8 [ Location Week tons Cumulative Comments E Cresson Clay Processing 4,872 47,548 Comments S Cresson Clay Processing 0 201,199 Processing in area complete. Squaw Gulch Processing 0 35,816 Processing in area complete. Total 4,872 277,952 2) Low Volume Solution Collection Fill Material ( LVSCF) Processing of Low Volume Solution Collection Fill material continued at the Dump 4 LVSCF Process. A CAT D -10 dozer and a skid steer loader were used to process the material. G) Miscellaneous No work was performed during the week. III) Underground Workings A) Drilling/Excavation No work was performed during the week. B) Mine Shaft /Stope Remediation Remediation of Underground Working #3012 continued with the placement of the concrete plug. Approximately 100 cubic yards of 4000 -psi concrete was placed in the previously prepared opening. The area inspected by an AMEC representative prior to concrete placement and found to be constructed properly in competent and frost/ice free material. Two samples were obtained randomly during concrete placement. Slump testing, air - entrainment testing, temperature testing, and casting of five 6" x 12" cylinders was performed for each sample. All field properties testing results were with in project specifications and performed in accordance with ASTM /ACI standards. The cylinders cast will be transported to an off -site facility and tested for compressive strength at specified curing ages. C) Lateral/Slot Remediation No work was performed during the week. IV) Storm Water Management Structures A) Control Structures No work was performed during the week. B) Best Management Practices Best Management Practices are being observed throughout the Phase 5 VLF Project. Storm water controls were maintained throughout the week. Precipitation was not substantial throughout the week. Storm water controls are being constructed in the East Cresson Clay Borrow as needed. VLF Weekly Report WE 03.27.10.D. c- Week Location Comments tons (tons) Dump 4 LVSCF Processing 16,407 226,475 G) Miscellaneous No work was performed during the week. III) Underground Workings A) Drilling/Excavation No work was performed during the week. B) Mine Shaft /Stope Remediation Remediation of Underground Working #3012 continued with the placement of the concrete plug. Approximately 100 cubic yards of 4000 -psi concrete was placed in the previously prepared opening. The area inspected by an AMEC representative prior to concrete placement and found to be constructed properly in competent and frost/ice free material. Two samples were obtained randomly during concrete placement. Slump testing, air - entrainment testing, temperature testing, and casting of five 6" x 12" cylinders was performed for each sample. All field properties testing results were with in project specifications and performed in accordance with ASTM /ACI standards. The cylinders cast will be transported to an off -site facility and tested for compressive strength at specified curing ages. C) Lateral/Slot Remediation No work was performed during the week. IV) Storm Water Management Structures A) Control Structures No work was performed during the week. B) Best Management Practices Best Management Practices are being observed throughout the Phase 5 VLF Project. Storm water controls were maintained throughout the week. Precipitation was not substantial throughout the week. Storm water controls are being constructed in the East Cresson Clay Borrow as needed. VLF Weekly Report WE 03.27.10.D. c-