Beloeil Water Hardness & Quality Report (2026)

Beloeil's drinking water is managed by Ville de Beloeil, a charming Montérégie community on the south shore of the Richelieu River directly across from the historic Mont-Saint-Hilaire mountain — drawing from the Richelieu River via the municipal treatment plant. Water undergoes coagulation, sedimentation, filtration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) requirements. Hardness measures 67.5 mg/L (3.9 gpg) — classified as moderately hard by Health Canada, noticeably softer than the upstream Chambly (90 mg/L from batch 17) on the same Richelieu River, reflecting the greater dilution from the wider Richelieu River channel in the lower Beloeil section.

Beloeil's 67.5 mg/L compared to Chambly's 90 mg/L on the same Richelieu River system reflects the position of each community's intake on the river corridor. Chambly is near the narrower upper Richelieu Basin where the river passes through the Chambly rapids section with greater contact with the Champlain Lowlands Ordovician limestone bedrock; Beloeil is on the lower, wider Richelieu near its St. Lawrence confluence, where extensive St. Lawrence River dilution and mixing with softer water from the broader Montérégie drainage reduces the hardness to the 67.5 mg/L level.

At 67.5 mg/L, Beloeil residents experience minimal-to-light scale deposits — occasional kettle cleaning every two to three months is adequate. Hot water tanks operate reliably at this hardness. Ville de Beloeil publishes annual water quality reports following Ministère de l'Environnement standards. Beloeil's character as a charming historic Richelieu valley community with significant pre-1945 heritage housing stock means Health Canada lead precautionary guidance applies to residents in older properties in the historic Beloeil village core near the Richelieu waterfront.