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North Dakota Water Hardness

2 cities · average 15.4 GPG

Average hardness

15.4 GPG

Hardest city

Bismarck 16.2 GPG

Softest city

Fargo 14.6 GPG

Tier distribution

Very Hard2

Cities ranked by hardness

1Bismarck16.2 GPGVery Hard 2Fargo14.6 GPGVery Hard