2009-04-24_REPORT - M1980244

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 4/24/2009
• Doc Name: Weekly Construction Quality Assurance ‎("CQA")‎ Reports- 4/12/09
• From: CC&V
• To: DRMS
• Type & Sequence: AM9
• Email Name: BMK
• Media Type: D
• Archive: No

amec
Earth & Environmental
Completed LOB Underground Workings
4/18/2009
ID# Northing Eastin Elevation Comments
2001 50199.458 40213.67 10174.951 On edge of VLF footprint. Shallow shaft. Backfill with structural fill.
2002 49681.855 39111.85 10222.514 Shallow shaft. Backfill with structural fill.
2003 54670.511 37987.468 10189.265 Not in LOB haul road footprint
2004 54317.717 37821.732 10112.226 In cut. No remediation needed.
2005 54228.037 38046.401 10174.113 Shaft or collapse into Raven Tunnel 10,100' elv. World is in cut. no remediation.
2006 54066.629 38153.84 10175.45 Not in LOB haul road footprint
2007 54048.3 38214.844 10190.934 Not in LOB haul road footprint
2008 54036.13 38197.064 10188.578 Not in LOB haul road footprint
2009 53994.91 38183.725 10168.716 Not in LOB haul road footprint
2010 53982.346 38121.653 10148.466 Shaft in cut. No remediation. Cut being performed in area
2011 53982.138 38121.823 10148.473 Shaft in cut. No remediation. Cut being performed in area
2012 54004.148 38113.49 10151.034 Shaft in cut. No remediation. Cut being performed in area
2013 54000.689 38085.834 10140.068 Shaft in cut. No remediation. Cut being rformed in area
2014 53974.82 38089.862 10133.673 Shaft in cut. No remediation. Cut being performed in area
2018 54573.755 37562.074 10071.456 Shallow shaft in cut. Backfill shaft with structural fill. Removed during cut
2019 54641.412 37585.877 10065.009 Shallow shaft in cut. Backfill shaft with structural fill. Horiz. drift running in an east.
2020 54652.14 37500.975 10037.916 Shallow shaft in fill. Backfill shaft with structural fill. Backfilled
2021 54749.88 37727.329 10090.254 Haulage tunnel in cut. No remediation Removed during cut
2022 54866.79 37768.44 10081.047 Shallow shaft in cut. Backfill shaft with structural fill. Backfilled
2023 55130.037 37883.8 10081.745 Not in LOB haul road footprint
2024 55065.199 38273.248 10255.281 Not in LOB haul road footprint
2025 55147.916 38335.892 10257.719 Not in LOB haul road footprint
2026 55132.735 38272.95 10249.238 Not in LOB haul road footprint
2027 55164.21 37686.05 0 Haulage tunnel in fill. No remediation Fill laced Completed
2028 54615.713 37641.886 10068.216 Removed during LOB Pad cut
2029 53959.714 38101.139 10124.015 Removed during LOB Pad cut
2035 53445.518 38116.952 9981.517 No Remiediation Required
2037 53262.75 38599.62 9974.29 No Remiediation Required
2039 52921.48 38797.4 9790.24 Remiediation Complete
Pending LOB Underground Workings
4/18/2009
2015 53978.476 37990.783 10100.528 Tomado Shaft at road elevation. Dee workings down to 9,000 ft elv.
2016 53897.185 37972.07 10079.118 Sloped at surface connected to Tomado Shaft. Could reach %000 ft elv.
2017 54129.748 37916.308 10106.209 In cut. Like no remediation required. Will assess as construction progresses.
2030 53693.594 38234.679 10071.748 Backfilled for safe in LOB Delivery Road cut. Will assess as construction progresses.
2031 53780.553 37961.822 10049.108 Backfill Remiediation
2032 53704.086 37963.731 10031.741 Backfill Remiediation
2033 53426.918 37966.416 9952.933 Backfill Remiediation
2034 53393.731 38048.556 9952.576 Backfill Remiediation
2036 53511.741 37946.571 9976.853 No Remiediation Required.
2038 53155.24 37951.52 9854.09 Wafter Shaft: Backfill Remiediation per Remiediation Plan 3/20/2009
Figure 2 LOB Underground Working Summary
Sheet 9 of 11
LOB Weekly Report WE 04.18.09.D