Combating Leaks with Innovative Monitoring

By Stan Fong, Ph.D

As Canada’s drinking water infrastructure continues to age, the prevalence of leaks and the challenges that they pose on utilities also increases proportionally.

When it comes to large leaks, there are many effective solutions available for locating these leaks in a system, including traditional leak surveys and correlator technologies, which try to listen for these leaks through the pipe wall or surrounding soil. Smaller leaks, on the other hand, are often too quiet to be captured by these methods.

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Smart Hydrants Produce Excellent Results in Identifying Leaks

CITY OF HAMILTON

Identifying the Problem: Non-Surfacing Leaks

The City of Hamilton Water System provides water to 535,000 residents and several surrounding city centers. The Woodward treatment facility produces 900,000 m3/day (200 MGD) servicing 144,683 service connections distributing through 2,031km (1,262 miles) of water mains.  

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Long Running Leak

CITY OF WATERLOO

Identifying Costly Non-Surfacing Leaks

The City of Waterloo, Ontario, Canada is responsible for the distribution of water to over 137,000 customers within the Regional Municipality of Waterloo. The distribution system is divided into 7 areas, with over 441km (275mi) of watermains. Non-surfacing leaks can add up to big money very quickly.

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Leaks & Transients

REGIONAL MUNICIPALITY OF DURHAM

Finding Leaks

The Regional Municipality of Durham covers a large geographic area to the east of the City of Toronto. The Region covers an area of 2,523km2 (974mi2) which includes several large cities and towns with a rapidly growing population of over 700,000 people. The Region obtains water from Lake Ontario, Lake Simcoe, and groundwater systems. The water distribution systems include:

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