Amos Water Hardness & Quality Report (2026)

Amos's drinking water is managed by Ville d'Amos, drawing from the Harricana River watershed in the Abitibi-Témiscamingue region — the regional hub city of the Abitibi clay belt in northwestern Quebec, known as the 'Capitale de l'Abitibi' and a centre for mining services and forestry in one of Quebec's most resource-rich regions. Water undergoes coagulation, sedimentation, filtration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) requirements. Hardness measures 63.5 mg/L (3.7 gpg) — classified as moderately hard by Health Canada, consistent with the Abitibi watershed supply character.

Amos sits on the Harricana River at the heart of the Abitibi Clay Belt — a vast region of Quaternary lacustrine clays deposited by the giant post-glacial Lake Ojibway that once covered the entire Abitibi basin after the last ice age. The Harricana River drains the surrounding Archean Shield terrain of greenstone, granite, and gneiss — ancient crystalline rocks that dissolve very slowly — but the extensive clay-belt lake deposits in the drainage basin release modest calcium and bicarbonate, producing the moderately hard 63.5 mg/L supply. This is slightly harder than typical pure Shield towns in Quebec (Saguenay 11 mg/L, Sept-Îles ~20 mg/L) due to the clay-belt mineral contribution.

At 63.5 mg/L, Amos homes experience light scale deposits — occasional kettle cleaning every two months is adequate. Hot water tanks have a good operational lifespan. Ville d'Amos publishes annual water quality reports under Ministère de l'Environnement standards. Health Canada lead precautionary guidance applies to older pre-1975 residential properties in the historic Amos townsite and adjacent established neighbourhoods.