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Alberta Water Hardness Map

8 cities · average 11.0 GPG

Average hardness

11.0 GPG

Hardest city

Red Deer 12.58 GPG

Softest city

Lethbridge 9.5 GPG

Map — Alberta cities by hardness

Very HardHardModerateSoft

Tier distribution

Very Hard4Hard4

Cities ranked by hardness

1Red Deer12.58 GPGVery Hard 2Airdrie12.1 GPGVery Hard 3Medicine Hat11.7 GPGVery Hard 4Calgary11.1 GPGVery Hard 5Edmonton10.3 GPGHard 6Leduc10.3 GPGHard 7Spruce Grove10.3 GPGHard 8Lethbridge9.5 GPGHard