Quebec Water Hardness Map
14 cities · average 5.4 GPG
Average hardness
5.4 GPG
Hardest city
Waterloo 12.2 GPG
Softest city
Gatineau 2.6 GPG
Map — Quebec cities by hardness
Very HardHardModerateSoft
Tier distribution
Very Hard1Hard1Moderate10Soft2
Cities ranked by hardness
1Waterloo12.2 GPGVery Hard2Longueuil7.02 GPGHard3Lachine6.84 GPGModerate4Montreal6.8 GPGModerate5Ville St. Laurent6.78 GPGModerate6Drummondville5.26 GPGModerate7Dorval4.39 GPGModerate8Baie-D'Urfé3.98 GPGModerate9Beaconsfield3.98 GPGModerate10Dollard-des-Ormeaux3.98 GPGModerate11Kirkland3.98 GPGModerate12Pointe-Claire3.98 GPGModerate13Laval3.17 GPGSoft14Gatineau2.6 GPGSoft