Source
Intake
Treatment
Mains
Tap
Ottawa River
Also pipelines to Vankleek Hill, L'Orignal, and Laurentian Park (Champlain). Standpipe ~5,400–5,450 m³; ~55 km watermains in Hawkesbury.
Town notes it takes about two days for Ottawa River water to reach the tap after treatment and distribution travel time.
Hawkesbury Water Treatment Plant (670 Main Street West)
Conventional: coagulation/flocculation, Ultrapulsator and microsand ballasted clarifiers, high-rate sand/anthracite filters, clearwell, high-lift. Intake ~40 m offshore, ~4.5 m depth.
Treatment on record: filtration
Hardness 271 mg/L (Very hard)
Grade C (Fair)
pH 7.9 · lead 0.7 μg/L
ECCC / municipal open data (seed)