Pike, E 2011, 'Monitoring after mine remediation – planning considerations and lessons learned in northern Canada', in AB Fourie, M Tibbett & A Beersing (eds), Proceedings of the Sixth International Conference on Mine Closure
, Australian Centre for Geomechanics, Perth, pp. 293-300, https://doi.org/10.36487/ACG_rep/1152_97_Pike
As most mines leave waste deposited on site, there is a need to monitor the mine site long after mine closure. Through remediating a number of abandoned mine sites in the Northwest Territories, Canada, the Northern Contaminated Sites Programme has identified some key considerations and lessons learned for planning mine closure and monitoring. The most important consideration is to scope out monitoring requirements at the remediation planning stage, alongside developing remediation objectives for each mine site component and/or waste stream. This ensures: a better evaluation of remedial options; expectations of regulators and stakeholders are managed properly; and risks and liabilities are identified and mitigated appropriately. This also helps to define a monitoring end point. This paper also discusses other lessons learned and monitoring considerations such as defining the main drivers for short and long-term monitoring, considerations for scope and frequency of monitoring, and other considerations such as health and safety and site infrastructure, third party factors, adaptive management, and documentation and institutional controls.
Canadian Dam Association (2007) Dam Safety Guidelines, URL:
Cassie, J., Claypool, G. and Pike, E. (2007) Adaptive remediation of a fine-grained borrow pit in Canada’s North, Proceedings Fourth International Conference on Mine Closure (Mine Closure 2009), A.B. Fourie and M. Tibbett (eds), 9–11 September 2009, Perth, Australia, Australian Centre for Geomechanics, Perth, pp. 583–592.
CCME (2008) Canadian Council of Ministers of the Environment. Canada-Wide Standard for Petroleum Hydrocarbons in Soil, User Guidance.
CSMWG (1999) Contaminated Sites Management Working Group. A federal approach to contaminated sites, viewed 07 Feb 2011,
Golder Associates Ltd. (2011) Discovery Mine, Northwest Territories: Comprehensive Remediation Performance Assessment Report, as submitted to the Mackenzie Valley Land and Water Board.
INAC (2002) Mine Site Reclamation Policy for the NWT,
INAC (2007) Mine Site Reclamation Guidelines for the Northwest Territories,
INAC (2009) Abandoned Military Sites Remediation Protocol (AMSRP), viewed 03 Mar 2011, 90 p.,
MAC (2011) Mining Association of Canada, viewed 07 Feb 2011,
MEND (2011) Mine Environment Neutral Drainage. Program through Natural Resources Canada, viewed 06 Feb 2011,
NOAMI (2010) National Orphaned/Abandoned Mines Initiative, viewed 06 Feb 2011,