Mining is an important part of the economy and local heritage in the district of Timiskaming. Several Northern Ontario communities are rich in natural ores, earning the region an international reputation for the quality and quantity of our mining resources.
Historic mining and milling practices were very different from current mining practices. This is due to stronger regulatory requirements, and a better understanding of the physical and chemical hazards often associated with mining processes. Numerous old mines, waste rock and tailing deposits exist within the District so it is very important to understand the potential physical risks (from steep inclines, pits and trenches) and chemical risks (from exposure to metals and metalloids found in waste rock) to reduce possible exposure.
For many years, the Ontario Ministry of Environment has been collecting soil samples from former mining sites to assess arsenic and metal levels in these former industrial areas. The Timiskaming Health Unit has been working with the Ontario Ministry of Environment, the Ontario Ministry of Northern Development and Mines and other community partners to assess report findings, and to work with community partners on developing sustainable solutions.
Health Notices:
- Understanding Mine
Tailings
- Health Notice Crosswise Lake - 2007 Notice: Mine tailings in these waters and sediments may pose a health risk. Until further notice, swimming and fishing are not recommended.
- Health Notice Cobalt Lake - 2005 Notice: Mine tailings in these waters and sediments may pose a health risk. Until further notice, swimming and fishing are not recommended.
- Health Notice Heritage Silver Trail - Safe Trail Use Information: Remember that this is a Heritage Industrial Site. Please use caution when visiting this site. Soil, rocks and artifacts may contain hazardous elements. To protect historical values, and your own health, please do not handle or remove items from this site. Avoid eating or smoking at this location. These structures have been left intact because of their historical values. Please stay on designated trails. Be cautious of physical hazards.
