Areas We Serve
Approximately 5,000 square kilometers of the greater London area of Southwestern Ontario is supplied with treated drinking water by two regional water systems:
Lake Huron Primary Water Supply System
The Lake Huron Primary Water Supply System supplies the member municipalities of London, Lambton Shores, North Middlesex, South Huron, Bluewater, Lucan-Biddulph, Middlesex Centre and Strathroy-Caradoc from a water treatment plant located north of the community of Grand Bend. The plant has a current treatment capacity of 340 million litres per day (75 million Imperial gallons per day) and serves a population of approximately 400,000 people.
Elgin Area Primary Water Supply System
The Elgin Area Primary Water Supply System supplies the benefiting member municipalities of St. Thomas, London, Aylmer, Bayham, Central Elgin, Malahide, Southwold and Dutton Dunwich from a water treatment plant located east of the community of Port Stanley. The plant has a current treatment capacity of 91 million litres per day (20 million Imperial gallons per day) and serves a population of approximately 150,000 people.
More Information
The Lake Huron and Elgin Area water systems each have an Environmental Management System registered to the ISO 14001 international standard. Under the Safe Drinking Water Act, the Ontario Ministry of the Environment, Conservation and Parks (MECP) requires that each drinking water system have an accredited operating authority. In order to be accredited, the operating authority and the drinking water system must establish and maintain a Quality Management System.
Each of the municipalities supplied by these systems are responsible for water distribution to their residential, commercial and industrial customers. For more information about the water quality in your area, please contact your local municipal office.
If you require additional information on the Water Quality Reports published on this website, or require further information on this website and the Area Water Supply Systems, please contact us.