Data and annual reports

On this page, you will find information on data reported by owners and operators of metal and diamond mines under the Metal and Diamond Mining Effluent Regulations, as well as annual reports prepared by Environment and Climate Change Canada. The annual reports present a summary of the performance of Canadian mines with respect to the prescribed limits and requirements of the Regulations. They provide information on mines subject to the Regulations, effluent data, compliance performance and water bodies designated as tailings impoundment areas.

Data

Visit the Open Data platform to find out more about the information reported by owners and operators of mines.

Annual reports

Metal and Diamond Mining Effluent Regulations

• 2022 Summary of the Status Report on the Performance of Mines Subject to the Metal and Diamond Mining Effluent Regulations
• 2021 Summary of the Status Report on the Performance of Mines Subject to the Metal and Diamond Mining Effluent Regulations
• 2020 Summary of the Status Report on the Performance of Mines Subject to the Metal and Diamond Mining Effluent Regulations
• 2019 Summary of the Status Report on the Performance of Mines Subject to the Metal and Diamond Mining Effluent Regulations
• 2018 - 2019: Status Report on the Performance of Mines Subject to the Metal and Diamond Mining Effluent Regulations (PDF only – go to ‘’Issues’’, then click on the corresponding year)

Metal Mining Effluent Regulations

• 2014 - 2017: Status Report on the Performance of Metal Mines Subject to the Metal Mining Effluent Regulations (PDF only – go to ‘’Issues’’, then click on the corresponding year)
• 2004 - 2013: Status Report on the Performance of Metal Mines Subject to the Metal Mining Effluent Regulations (PDF only – go to ‘’Issues’’, then click on the corresponding year)
• 2003: Status Report on Water Pollution Prevention and Control under the Metal Mining Effluent Regulations (PDF only)