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• • <br />Opening ID <br />Type of Feature <br />Excavated Dimension <br />Eroded Dimension <br />Present Dimension <br />Depth <br />Shape of Opening <br />Surficial Material <br />Depth to Bedrock <br />Drainage <br />Existing Access Deterrents <br />Preferred Closure Method <br />366 <br />Shaft, Dbl Compartment <br />4.00 X 8.50 Ft <br />4.00 X 8.00 Ft <br />4.00 X 8.50 Ft <br />Over 200 Ft. <br />Rectangular <br />Mine dump <br />More than 25 ft <br />None <br />Fence <br />Puf <br />Install a polyurethane (PUF) closure with a ventilation and drain pipe. Place <br />the bottom form at the 28.00 foot level of the opening according to <br />specifications. No accessway is required. The required thickness of PUF is <br />9.9 vertical feet. The estimated volume of PUP is 12.50 cubic yards. Place <br />approximately 22.8 cubic yards of common fill over the polyurethane foam <br />closure to specifications. <br />Opening ID <br />367 <br />Type of Feature <br />Shaft /stope <br />Excavated Dimension <br />5.00 X 50.00 Ft <br />Eroded Dimension <br />10.00 X 60.00 Ft <br />Present Dimension <br />5.00 X 50.00 Ft <br />Depth <br />200 feet <br />Shape of Opening <br />Long slot <br />Surficial Material <br />Bedrek /dump rock <br />Depth to Bedrock <br />5 feet <br />Drainage <br />N/A <br />Existing Access Deterrents <br />Fence <br />Preferred Closure Method <br />Puf <br />Install a polyurethane (PUF) closure with a ventilation and drain pipe. Place <br />the bottom form at the 8.00 foot level of the opening according to <br />specifications. No accessway is required. The required thickness of PUP is <br />5.3 vertical feet. The estimated volume of PUF is 12.00 cubic yards. Place <br />approximately 62.0 cubic yards of common fill over the polyurethane foam <br />closure to specifications. <br />10 <br />