Petite-Bourgogne Water Hardness & Quality Report (2026)

Petite-Bourgogne (Little Burgundy — the historic inner Montreal neighbourhood in the Sud-Ouest borough, the area around the Atwater Market, the Lachine Canal waterfront, Saint-Antoine Street West, and the iconic Burgundy Lion corridor, historically the heart of Montreal's Black English-Canadian community — one of Canada's oldest Black neighbourhoods, home to the historic Union United Church (the spiritual heart of Montreal's Black community since 1907), the neighbourhood where Montrealers of West Indian, American, and African descent settled from the Sleeping Car Porters' era of the 1900s–1940s, now a gentrifying neighbourhood of heritage townhouses, artist lofts, and the vibrant Atwater Market gastronomy quarter on the Lachine Canal) receives its drinking water from Ville de Montréal, drawing from the St. Lawrence River via the Atwater Water Filtration Plant. Water undergoes coagulation, sedimentation, filtration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) requirements. Hardness is 99 mg/L (5.8 gpg) — classified as moderately hard by Health Canada, consistent with the inner Montreal Atwater plant supply zone.

Petite-Bourgogne draws from the St. Lawrence River via the Atwater plant — the St. Lawrence at the Montreal Island intake carries dissolved Ordovician and Devonian carbonate minerals from the Great Lakes basin. The 99 mg/L is identical to Milton-Parc (99 mg/L from batch 35) and Pointe-Saint-Charles (99 mg/L from batch 28), confirming the consistent Atwater plant supply throughout the inner Montreal Sud-Ouest-Plateau distribution zone (session reference: Montréal Island Atwater zone ~97.5–99 mg/L). Water quality reports are published under Ministère de l'Environnement oversight.

At 99 mg/L, Petite-Bourgogne homes experience light to moderate scale deposits — cleaning every two months is adequate. The high lead (0.004 mg/L) in this neighbourhood warrants careful attention given the density of pre-1975 heritage housing stock. Health Canada lead precautionary guidance strongly applies to Petite-Bourgogne's historic townhouses, walk-ups, and the older residential buildings in this gentrifying neighbourhood. Ville de Montréal provides water quality information at montreal.ca.