The Development document for the effluent monitoring regulation for the Ontario mineral industry sector.

They travel at approximately 3,000 feet per minute.Cages are used for men and materials and can transport as many as 85 people per load at slower speeds.Safety devices exist to prevent shaft conveyances from falling, should cables fail. LEVELSLevelshorizontal passages in a mine • are generally driven from the shaft at vertical intervals of 30 60 metres.That part of the level driven from the shaft to the orebody is known as the crosscut , and that pari which continues along the orebody is known as a drift .Crosscuts and drifts vary in size depending on the size of the haulage equipment in use.A raise is an opening made in the back (roof) of a level to reach the level above. STORESA stope is an excavation where the ore is drilled, blasted and removed by gravity through chutes to ore cars on the haulage level below.Slopes require openings (manways) to provide access for people and materials.Normally, raises connect a stope to the level above and are used for ventilation, for convenience in getting people and materials into the stope, and for admitting backfill. STORING MET>HODSThe stoping method used normally depends on the stability of the walls and ore as ore removal progresses.The three common stoping methods used in Ontario are:1.