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​We're always improving our distribution system to minimize the number of interruptions affecting your water service. This includes budgeting around $40 million annually for renewal projects and long term infrastructure sustainability projects like replacing cast iron pipe with PVC pipe.

Water assets replaced (2015)

Water Asset Number/Length Replaced
Main Line Valves 321
Service Valves (100mm)
Hydrants 157
Water Mains (km) 14.1

Replacing cast iron pipe with PVC pipe

We've been replacing cast iron water main pipes in Edmonton with Polyvinyl Chloride (PVC) plastic water main pipes since 1986. Edmonton now has more than twice as much PVC pipe in its system than cast iron pipe.

  • As a result, annual water main breaks have dropped by 75%.
  • Today, 90% of breaks still occur on cast iron pipes, while only about 1% of breaks occur on PVC pipe.
  • Tests continue to show that PVC pipe meets the required performance criteria for new water main pipes.