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• Barricade Chamber Access Escape Shaft <br /> • 10-Right Dewatering Boreholes I and 2 <br /> • Substation No. 11 (NMD) Power-Drop Borehole <br /> • NW Mains Ventilation Shaft and Borehole <br /> • 6-Main North Ventilation/Escape Shaft and associated utility boreholes(7) <br /> • EMD Ventilation/Escape Shafts(2, sealed in late 2009) <br /> • 18-Right Ventilation/Escape Shaft(sealed in late 2009) <br /> • 18-Left Ventilation Intake and Return Shafts and associated utility boreholes <br /> • 19-Right Mine Dewatering Borehole(permitted but not completed) <br /> • 16-Left Utility Borehole <br /> • 17-Left Cement(WMD Stabilization) Borehole(sealed in 2013) <br /> • 15-Left Ventilation Shaft(permitted but not completed) <br /> • 5-Main North Borehole <br /> • 10-East Emergency Borehole(permitted but not completed) <br /> • SWMD Thickener Underflow Borehole <br /> • Sandstone Sub Thickener Underflow Borehole <br /> • SWMD and WMD Thickener Underflow boreholes(2) <br /> RN 17-07 2.05-11.2 02/15/18 <br />