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Tennessee Water Hardness

5 cities · average 6.5 GPG

Average hardness

6.5 GPG

Hardest city

Knoxville 8.6 GPG

Softest city

Memphis 2.4 GPG

Tier distribution

Hard3Moderate1Soft1

Cities ranked by hardness

1Knoxville8.6 GPGHard2Clarksville8.4 GPGHard3Chattanooga7.9 GPGHard4Nashville5.2 GPGModerate5Memphis2.4 GPGSoft