The restoration of South Bay Mine site: narrative report
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Boojum Research Ltd.
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There are an estimated 5000 abandoned mine sites in Ontario, many of them generating acidic
run-off. They are the legacy of an era in which few constraints governed the search for minerals
and little thought was given to site restoration. They are now the property, by default, of Ontario
taxpayers. The passage of the Ontario Mining Act in 1991, and amended in 2000, marked the
formal recognition in Ontario of the longevity and complexity of mine-related environmental
problems. The only mine site that has ever been returned to the Ontario government, having
undergone a process of remediation, is the South Bay Mine in Northwestern Ontario