Runnymede-Bloor West Village Water Hardness & Quality Report (2026)

Runnymede-Bloor West Village (a cherished west Toronto neighbourhood combining the Runnymede community with the Bloor West Village strip — the area around the Bloor West Village shopping district (the largest BIA in Canada by some measures, known for its European bakeries, cheese shops, and independent retailers along Bloor Street West from Jane to Runnymede), the Runnymede Library Carnegie-heritage branch, the Humber River ravine park entrance, and the Bloor-Dundas-Runnymede triangle of dense residential and commercial streets, one of Toronto's most beloved family-oriented and walkable west-end neighbourhoods with a predominantly Polish-Canadian, Ukrainian-Canadian, and mixed European immigrant heritage dating to the post-war settlement of the Bloor West corridor) 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 239 mg/L (14.0 gpg) — classified as very hard by Health Canada, consistent with the standard west Toronto supply corridor.

Runnymede-Bloor West Village receives F.J. Horgan plant Lake Ontario supply through the west Toronto distribution — the same characteristically very hard Lake Ontario source (dissolved Silurian and Devonian carbonate from the Great Lakes basin) as all Toronto boroughs. The 239 mg/L is consistent with Forest Hill South (239.5 mg/L from batch 35), Weston-Pellam Park (239.5 mg/L from batch 34), and the standard west Toronto supply corridor throughout the Bloor-Jane-Runnymede distribution.

At 239 mg/L, Runnymede-Bloor West Village residents face persistent scale challenges — monthly to bimonthly kettle and showerhead descaling is typical. The European-style bakeries and delicatessens of Bloor West Village use water treatment equipment for their equipment. The City of Toronto provides multilingual water quality information at toronto.ca/water. Health Canada lead service line precautionary guidance applies to the neighbourhood's post-war and interwar housing stock for pre-1955 properties in the established Runnymede-Bloor West area.