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Maryland Water Hardness
Across the 3 cities we track in Maryland, hardness ranges from 8.8–9 GPG, with 3 cities running hard or very hard, and 2 more cities don't publish a figure.
3 cities tracked. View the Maryland hardness map → · Is Maryland water safe to drink? →
Cities with no published figure
These Maryland cities don't publish a hardness number (it isn't a regulated parameter), so they can't be ranked — but we still track them. See each page for how to check your own tap.