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Michigan Water Hardness

4 cities · average 10.9 GPG

Average hardness

10.9 GPG

Hardest city

Lansing 13.8 GPG

Softest city

Detroit 5.6 GPG

Tier distribution

Very Hard3Moderate1

Cities ranked by hardness

1Lansing13.8 GPGVery Hard2Grand Rapids12.6 GPGVery Hard3Ann Arbor11.7 GPGVery Hard4Detroit5.6 GPGModerate