Tap water hardness in Hyogo
We have published hardness data for 6 cities in Hyogo. The median is 40 mg/L; the hardest water is in Akashi (64 mg/L), the softest in Himeji (34 mg/L).
0 % of these cities have hard or very hard water (over 120 mg/L).
Japanese waterworks report hardness (硬度) in mg/L CaCO₃; the standard is 300 mg/L and the target 10–100 mg/L.
Cities in Hyogo, hardest first
| mg/L | mg/L | ||
|---|---|---|---|
| Akashi | 64 | 64 | moderately hard |
| Amagasaki | 41 | 41 | soft |
| Nishinomiya | 41 | 41 | soft |
| Kobe | 39 | 39 | soft |
| Takarazuka | 37 | 37 | soft |
| Himeji | 34 | 34 | soft |