During winter in Edmonton, Alberta, it’s not unusual for temperatures to dip to 30 degrees below zero. That stops a lot of things from working well, from pipelines that freeze to hydraulic controls on equipment that barely function – even employees who work outdoors.But despite the brutal conditions, which can run from late October through March or April, work rarely stops for employees at Canessco Services Inc., an industrial cleaning and wastewater services firm.“When it’s minus 30 degrees, you’re just trying to keep water from becoming a giant ice cube,” says Nathan Gagnier, operations manager. “We use water-recirculation systems in
