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Out with the old

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The regional municipality of Peel is the third-largest water utility in Canada serving a population of approximately 1.38 million people in the cities of Mississauga, Brampton and Caledon, in Ontario.
The region’s water system comprises 4,500 km of water mains ranging in size from 100 mm to 2,500 mm in diameter. The majority of these water mains are PVC and relatively new, but there is over 510 km of older metallic piping (from 150 mm to 300 mm in diameter) remaining.
The majority of issues with leaks and water mains failures are found within these older metallic mains.
Repairs programme
Peel currently uses the State of Good Repair programme to plan its water mains renewal. Based on industry standard lifecycle assessment, the existing metallic mains have approximately 10-15 years of expected service life remaining and the region has been replacing 15-20 km of metallic water mains a year over the last five years.
Nimarta Gill, project manager for State of Good Repair for the Peel region, said: “The current programme plan is to replace all remaining metallic water mains within the next 20 years, so identifying and...

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