Broadview North Water Hardness & Quality Report (2026)

Broadview North (an East York neighbourhood north of Broadview Avenue at the Cosburn-O'Connor corridor — the East York Town Centre-adjacent residential community of post-war bungalows and detached homes north of the Danforth–Broadview intersection along the O'Connor Drive-Cosburn Avenue grid, adjacent to the East York Civic Centre and the East York Memorial Arena, a predominantly working-class Italian-Canadian and South Asian community established in the post-war East York residential boom of the 1940s–1960s along the Broadview North residential plateau above the Don River valley) receives its drinking water from the City of Toronto, drawing from Lake Ontario via the R.C. Harris 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 238.5 mg/L (13.9 gpg) — classified as very hard by Health Canada, consistent with the standard East York supply.

Broadview North receives R.C. Harris plant Lake Ontario supply through the East York distribution — the same characteristically very hard Lake Ontario source (dissolved Silurian and Devonian carbonate from the Great Lakes basin) as all Toronto boroughs. The 238.5 mg/L is identical to North Riverdale (238.5 mg/L from batch 32) in the same Broadview–Danforth East York distribution sub-zone, confirming a consistent supply throughout this east Toronto corridor.

At 238.5 mg/L, Broadview North residents face persistent scale challenges — monthly to bimonthly kettle and showerhead descaling is typical. 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 bungalow and detached housing stock for pre-1955 properties in the established Broadview North East York streets.