There are dozens of municipalities across Canada that still use asbestos cement water pipes, servicing homes, businesses and schools. Regina, Saskatchewan has 600 kilometres of asbestos cement water pipes. “These pipes are experiencing more and more failures in recent years and account for almost all of the water main breaks in the city,” reads an NRC report on the matter. The report goes on to refer to asbestos fibres in water as a “health concern.”
Mining and Water Pollution
While there have been improvements to mining practices in recent years, significant environmental risks remain. Negative impacts can vary from the sedimentation caused by poorly built roads during exploration through to the sediment, and disturbance of water during mine construction. Water pollution from mine waste rock and tailings may need to be managed for decades, if not centuries, after closure.