British Columbia Mine Reclamation Symposium

Abandoned mines in Ontario Mackasey, W. O.

Abstract

With the promulgation of Bill 71 in June 1991, the closure of mines in the province of Ontario must meet stricter environmental conditions. The legacy of open shafts and derelict sites should be brought to an end. A new Abandoned Mines Abatement Program was also introduced in 1991 to deal with clean-up of abandoned sites that have reverted to the Crown or that have no responsible owner. Work has commenced on a number of fronts that include inventory studies, acid mine drainage research, surface crown pillar monitoring and remedial work projects.

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