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 Water Services facilities, including 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 555 kilometres of buried watermain
  • About 4,263 watermain valves
  • About 2,783 fire hydrants
  • About 44,000 fully metered water service connections

In 2017:

  • A total of 16,921,444 cubic metres (16.9 billion litres) of water was treated and pumped to the system;
  • The average daily water demand was 46,360 cubic metres (46.3 million litres);
  • The highest daily use of water was 54,421 cubic metres (54.4 million litres) on September 25; and
  • The minimum day production of water was 36,821 cubic metres (36.8 million litres) on July 2.

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