London completes 3rd longest AFO project in North America
Last week, government officials, special guests and educators gathered in London, Ontario to celebrate the successful funding, installation and commissioning of a 50 km AFO system on the Lake Huron Water System’s water main transmission pipeline – a 1200mm diameter PCCP supplying more than 500,000 people in southwestern Ontario.
“The project was special,” said Mike Wrigglesworth senior vice-president at Pure. “We love partnering with forward thinking utilities like London Region to save money by using innovative technologies like the AFO system. Instead of budgeting for an expensive replacement program or dealing with disruptive bursts, London Region have saved millions of dollars by actually managing the pipeline.”
The event was covered by the London Free Press, which wrote the following story.
Water supply safeguard comes down the pipe
Now, we can keep an ear out for problems with a pipeline that brings fresh water to London. The city and region took the wraps off a new, fibre-optic cable installed in the water pipeline from Lake Huron to London with an announcement Friday at London Convention Centre.
If that pipe is about to break or leak, new monitoring technology will warn water watchers, preventing a rupture.
“We have an acoustic fibre-optic system that allows pipelines to be managed, identifying problems before they become bigger. When a pipeline fails, it is a big mess,” said Mike Wrigglesworth, senior vice-president of Pure Technologies, the Alberta firm supplying the cable.
The $7.5-million project has installed the acoustic cable on a 50-kilometre stretch between the Grand Bend water treatment plant and an Arva reservoir, covering seven municipalities, which are sharing the cost with Ottawa and the province.
The acoustic cable lets staff “listen” to the pipeline for steel wires snapping as the pipe breaks down. There are hundreds of such wires in each section of pipeline.
“One wire breaking in a pipe is no big deal, but 30 or 40 is a weak section of a pipeline,” Wrigglesworth said.
“It can inform which sections of pipe are deteriorating, in real time, and we can be pro-active,” said Wrigglesworth. “We can identify which sections of pipe have a problem and make a plan to repair.”
A repair might cost $75,000, a “huge savings” over the cost of fixing a rupture, which could run to as much as $1.5 million, he said.
The Lake Huron-to-London pipeline has broken twice, in 2010 and 2012.
Under the new system, “We will get an email to say a section of pipe has a break, they even give us the map location of where it happens,” said John Walker, operations manager for the Lake Huron and Elgin area primary water supply, which oversees the regional and city water system.
“At some point, we will have to extend this (acoustic cabling) to Lake Erie,” Coun. Harold Usher said of the city’s other water supply pipeline. “Everything we do in one, we will do in the other. We cannot have farmer fields flooded.”
The $7.5-million upgrade to the Lake Huron-to-London water line is part of $179.1-million in water safety infrastructure investments across Southwestern Ontario. The federal and provincial governments are paying about $50 million each, with municipalities picking up the balance. In all, eight projects will be completed by 2017.