Trois-Rivieres drinking water path

• Source & supply

  Rivière Saint-Maurice

  Municipal groundwater wells (multiple wellfields)

  Besides the Saint-Maurice filtration plant, several groundwater production sectors (including Cap-de-la-Madeleine, Saint-Louis-de-France, Sainte-Marthe-du-Cap, and parts of Trois-Rivières-Ouest) feed local reservoirs and a partly interconnected aqueduct network.

  Unlike many St. Lawrence cities, Trois-Rivières does not use the St. Lawrence as its municipal drinking-water source; groundwater remains a major share of supply.

• Treatment

  Usine de filtration de Trois-Rivières

  Surface-water plant on Rivière Saint-Maurice; coagulation/flocculation, filtration, UV, and chlorine/chloramine residual; serves roughly 60% of customers (city cites ~70% surface / 30% groundwater overall supply mix).

  Treatment on record: chlorination · UV · filtration

• At the tap

  Hardness 216 mg/L (Very hard)

  Grade B (Good)

  pH 7.3999999999999995 · lead 0 μg/L

  ECCC / municipal open data (seed)