Etobicoke West Mall Water Hardness & Quality Report (2026)

Etobicoke West Mall (a southwest Etobicoke neighbourhood near the Westwood Mall and the Highway 427–QEW interchange — the Etobicoke West Mall community centred on the commercial strip along Burnhamthorpe Road and Bloor Street West near the Toronto-Mississauga border at the Westwood Mall, a dense residential community of post-war apartment buildings and townhouses adjacent to the Etobicoke Creek greenway corridor, the Sherway Gardens-adjacent commercial district, and the southwest Etobicoke transit corridors) receives its drinking water from the City of Toronto, drawing from Lake Ontario via the F.J. Horgan Water Treatment Plant. Water is treated using ozonation, biofiltration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) standards. Hardness is 190 mg/L (11.1 gpg) — classified as very hard by Health Canada (just above the 180 mg/L threshold), an anomalously softer sub-zone in the southwest Etobicoke distribution corridor.

Etobicoke West Mall's 190 mg/L joins the cluster of anomalously softer southwest Etobicoke distribution sub-zones alongside Alderwood (200 mg/L from this batch) and Humber Summit (173 mg/L from batch 31) — all significantly softer than the standard Toronto F.J. Horgan supply (229–240 mg/L). This southwest Etobicoke distribution corridor at the QEW–427 interchange extremity of the Toronto pipeline network shows a consistent pattern of softer sub-zones reflecting the specific F.J. Horgan distribution routing at the western Etobicoke pipeline extremity.

At 190 mg/L, Etobicoke West Mall residents face persistent scale challenges — monthly kettle and showerhead cleaning is typical. The City of Toronto provides multilingual water quality information at toronto.ca/water. Health Canada lead precautionary guidance applies to pre-1975 properties in the established Etobicoke West Mall neighbourhood's post-war apartment building stock.