Vaughan drinking water path

Source

Lake Ontario Surface water

to plant

Treatment

City of Toronto and Region of Peel plants… municipal treatment

treated water

Transmission

Regional pipeline wholesale transmission

finished

Mains

Distribution York Region transmission feeds Vaughan storage and booster facilities; the City of Vaughan operates the local distribution network.

drinking water

Tap

Household tap Vaughan

Source & supply
Lake Ontario
York Region transmission feeds Vaughan storage and booster facilities; the City of Vaughan operates the local distribution network.
Official York drinking-water reports note Vaughan, Markham, and Richmond Hill form the southern lake-only service area of the York Drinking Water System.
Treatment
City of Toronto and Region of Peel treatment plants (wholesale) — York Region supply
Vaughan’s primary supply is Lake Ontario water purchased through York Region from Toronto and Peel. Kleinburg is operated as a distinct York sub-system within Vaughan.
At the tap
Hardness 156 mg/L (Hard)
Grade C (Fair)
pH 6.8999999999999995 · lead 0.4 μg/L
ECCC / municipal open data (seed)