Source
Intake
Treatment
Mains
Tap
Saint Lawrence River
Chaudière River
Three production plants feed sectorized distribution networks; the city has been interconnecting plants so one can backstop another during source emergencies.
After the Lac-Mégantic disaster contaminated the Chaudière upstream, Charny temporarily switched to the Beaurivage River—an episode that drove interconnection investment between Lévis plants.
Usine de production Lévis (secteur Desjardins)
Draws from the Saint Lawrence River; multi-barrier treatment including filtration, ozonation, UV, and chlorination.
Usine de production Saint-Romuald
Saint Lawrence intake serving the Saint-Romuald distribution sector.
Usine de production Charny
Hardness 120 mg/L (Hard)
Grade A (Excellent)
pH 6.8 · lead 0 μg/L
ECCC / municipal open data (seed)