![Wastewater Utility Carves Collections System Out of Rock](https://cole-iandimag.imgix.net/https%3A%2F%2Fwww.iandimag.com%2Fuploads%2Fimages%2Fsudbury_023_170918_081815.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=0fc573d5c38401649631abdd26be18f1)
Greater Sudbury Water and Wastewater Services has picked up a trick or two from the mining industry, substituting hard-rock tunnels for traditional trunk sewers along 13 miles of its system. Unique in the world, the system has proved to be both cost-effective and durable, requiring little to no maintenance over more than a half-century.
Greater Sudbury, Ontario, is located about 250 miles north of Toronto. The area has become famous for its mining operations, harvesting...