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Who Manages Your Water


Water Operations

Water Operations provides continuing maintenance of the water treatment and distribution system in the City of London to ensure that water can be conveyed to the residents of London. They are responsible for the treatment operation and control of all valves, pumping stations, disinfection equipment, reservoirs and any other element of the system that needs control. They also are responsible for both preventative and unplanned maintenance on these elements as well as watermains, hydrants and any other aspect of the system requiring maintenance. The emergency well water supply is operated and maintained by Water Operations.

Water Engineering

Water Engineering is responsible for most of the capital projects that fall under the Water Service Area. This area's work can include life-cycle renewal of watermains, capital projects for pumping stations like expansion or refurbishment, and system improvements to increase water quality or pressure as well as other engineering projects. Water Engineering is also responsible for maintaining the city-wide distribution hydraulic model, product approval and demand management/conservation programs.

Regional Water Supply

The third part of  London's water distribution system, is the treatment portion.  In 1965, the Province built a new treatment plant in Grand Bend as well as a pipeline to connect to a new reservoir in Arva.  These pipes and the treatment plants (including the one built in Port Stanley) are part of the Regional Water System.  The System is managed and operated by the staff of the Regional Water Supply (RWS) who are an independent group.  The RWS are responsible for operating and maintaining the water treatment plants located at Grand Bend on Lake Huron and East of Port Stanley on Lake Erie as well as the transmission of treated water to the City of London and to the other municipal customers they serve within the Regional system.  Approximately 5,000 square kilometres of the greater London area, the St. Thomas area, and South Western Ontario are supplied by these two Water Treatment Systems.