Saint Romuald Water Hardness & Quality Report (2026)

Saint-Romuald's drinking water is managed by Ville de Lévis, drawing from the St. Lawrence River — Saint-Romuald is a borough of Lévis, the city on the south shore of the St. Lawrence directly across from Quebec City, connected by the Québec-Lévis Ferry and the Pont de Québec (the Pierre Laporte Bridge) and the iconic Quebec City–Lévis rail bridge. Lévis is named after the Duc de Lévis, French commander at the decisive 1760 Battle of Sainte-Foy near Quebec City, and Saint-Romuald is the industrial and residential south shore borough of Lévis nearest to the Chaudière River estuary. Water undergoes coagulation, sedimentation, filtration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) requirements. Hardness measures 87 mg/L (5.1 gpg) — classified as moderately hard by Health Canada, consistent with the Lévis south shore St. Lawrence supply range.

Saint-Romuald draws from the St. Lawrence River at the Lévis south shore — the St. Lawrence at this point carries water from the Great Lakes mixed with the Chaudière River and Beauce region Appalachian tributaries. The 87 mg/L is consistent with the east Quebec City south shore corridor (QC Capitale-Nationale area 74–83.5 mg/L from reference data), slightly at the upper end of the range on the Chaudière-Appalaches south shore, reflecting the local Chaudière River Appalachian input. Water quality reports are published under Ministère de l'Environnement oversight.

At 87 mg/L, Saint-Romuald homes experience light to moderate scale deposits — cleaning every two months is adequate. Health Canada lead precautionary guidance applies to pre-1975 properties in the historic Saint-Romuald borough near the Chaudière River estuary and the established residential streets overlooking the St. Lawrence.