Sainte-Marie drinking water path

Source

Rivière Chaudière (permanent intake; two submerged screens ~2.4 m depth at 1065 rue Notre-Dame Sud) Surface water

raw water

Intake

Raw water intake pump station

to plant

Treatment

Installation de production Sainte-Marie (… chlorination · UV · filtration

finished

Mains

Distribution Serves ~13,500 people. Intake ~4 km south of the urban perimeter in an agricultural reach; booster station and dual reservoirs on the distribution side. City publishes annual quality bilans and Chaudière level monitoring.

drinking water

Tap

Household tap Sainte-Marie

Source & supply
Rivière Chaudière (permanent intake; two submerged screens ~2.4 m depth at 1065 rue Notre-Dame Sud)
Serves ~13,500 people. Intake ~4 km south of the urban perimeter in an agricultural reach; booster station and dual reservoirs on the distribution side. City publishes annual quality bilans and Chaudière level monitoring.
Sainte-Marie’s Chaudière intake sits in the flood-prone Moyenne-Chaudière corridor—the same river corridor that forced neighbouring towns onto alternate sources after Lac-Mégantic.
Treatment
Installation de production Sainte-Marie (X2134730)
City vulnerability report (2026): screening, coagulation/flocculation, sedimentation, ozonation, UV reactors, then chlorine gas disinfection and caustic soda pH adjustment. Feeds Saint-Joseph and Bisson reservoirs. MELCC lists chlorination, filtration, ozonation, and ultraviolet.
Treatment on record: chlorination · UV · filtration
At the tap
Hardness 262 mg/L (Very hard)
Grade B (Good)
pH 8 · lead 0.6 μg/L
ECCC / municipal open data (seed)