Water Quality in Hawaii
Water hardness and contaminant data for 1 cities across Hawaii. Find your city below to see a detailed water quality profile.
1
Cities
80
Avg Hardness (PPM)
80
Hardest City (PPM)
Hawaii Cities by Water Hardness
| City | Hardness (PPM) | Level | PFAS (ppt) | Source |
|---|---|---|---|---|
| Honolulu | 80 | Moderately Hard | 20 | Groundwater (basalt aquifer) |