OpenStats
OpenStats Drinking Water Hardness
Communities ranked by municipal drinking-water hardness (mg/L as CaCO₃). Rank 1 is hardest. Includes direct municipal readings and regional/seed rows where direct reports are not yet published.
- Theme
- water
- Cadence
- annual
- Geography unit
- csd
- How we publish
- Full OpenStats table
Editions
- OpenStats Drinking Water Hardness (2025, vintage carried)172 placements · coverage 172
- OpenStats Drinking Water Hardness (2024, vintage carried)172 placements · coverage 172
- OpenStats Drinking Water Hardness (2023, vintage carried)172 placements · coverage 172
- OpenStats Drinking Water Hardness (2022, vintage carried)172 placements · coverage 172
- OpenStats Drinking Water Hardness (2021, vintage carried)172 placements · coverage 172
- OpenStats Drinking Water Hardness (2020, vintage carried)172 placements · coverage 172
- OpenStats Drinking Water Hardness (2019, vintage carried)172 placements · coverage 172
- OpenStats Drinking Water Hardness (2018, vintage carried)172 placements · coverage 172
- OpenStats Drinking Water Hardness (2017, vintage carried)172 placements · coverage 172
- OpenStats Drinking Water Hardness (2016, vintage carried)172 placements · coverage 172