Drinking Water System
The City of Hamilton takes water from Lake Ontario then filters, cleans and treats it to supply Hamilton, Stoney Creek, Dundas, Ancaster, Waterdown, parts of Flamborough and Glanbrook with safe drinking water. The City also provides treated water to parts of Haldimand County and Halton.
Woodward Avenue Water Treatment Facility
Lake water enters an intake pipe and is pumped to the Woodward Avenue Water Treatment Facility. The water treatment process includes:
- clarification by means of coagulation with polyaluminum chloride
- floccuation by mechanical mixing
- filtration using granulated activated carbon in the filters to remove taste and odour
- chlorine and ammonia added to the filtered water to bring the combined chlorine residual to approximately 2.2 - 2.5 milligrams per litre
- hydrofluosilicic acid (fluoride) is added to the drinking water to promote dental health
The water treatment plant has a rated capacity of 909,000 m3/day (200 million gallons per day) and operates between one quarter and one third of its capacity.
Treated water is pumped through the central water distribution system to residential homes and businesses in:
parts of Flamborough and Glanbrook
parts of Haldimand County including Caledonia, York and Cayuga
minor connections to Burlington in Halton
The City owns, operates and maintains the central and communal well water distribution systems, which includes approximately:
2,031 kilometres of water mains
12,755 fire hydrants
20,860 water valves
144,683 service connections
Well Water Treatment Facilities
Carlisle, Freelton, Greensville & Lynden use groundwater as their drinking water source.