Water by numbers

The Guelph drinking water supply and distribution system is comprised of the following:

  • 21 operational groundwater wells and a shallow groundwater collector system
  • 31 facilities for water: sources, supply, treatment, storage or transfer
  • All water in the drinking water system is treated with sodium hypochlorite (for chlorine disinfection) with some sources also using ultraviolet light disinfection (UV) and some sources using sodium silicate for aesthetic purposes to sequester dissolved iron and manganese
  • 5 underground storage reservoirs with an approximate combined capacity of 48,000 cubic metres (48 million litres)
  • 3 water towers with an approximate combined capacity of 11,200 cubic metres (11.2 million litres)
  • About 551 kilometres of buried watermain
  • About 4,184 watermain valves
  • About 2,763 fire hydrants
  • About 44,000 fully metered-block water service connections

In 2016:

  • A total of 16,940,220 cubic metres (16.9 billion litres) of water was treated and pumped to the system;
  • The average daily water demand was 46,285 cubic metres (46.3 million litres);
  • The highest daily use of water was 56,498 cubic metres (56.5 million litres) on March 23; and
  • The minimum day production of water was 33,273 cubic metres (34.6 million litres) on December 26

For all the details of the Guelph Drinking Water System, review the latest Annual and Summary Water Services Report.