Tap water hardness in Yilan County
We have published hardness data for 10 cities in Yilan County. The median is 98 mg/L; the hardest water is in Luodong (140 mg/L), the softest in Sanxing (47 mg/L).
20 % of these cities have hard or very hard water (over 120 mg/L).
Taiwan Water Corporation reports total hardness in mg/L CaCO₃; the drinking-water standard is 300 mg/L.
Cities in Yilan County, hardest first
| mg/L | mg/L | ||
|---|---|---|---|
| Luodong | 140 | 140 | hard |
| Wujie | 140 | 140 | hard |
| Toucheng | 110 | 110 | moderately hard |
| Datong | 102 | 102 | moderately hard |
| Dongshan | 99 | 99 | moderately hard |
| Suao | 97 | 97 | moderately hard |
| Yilan | 95 | 95 | moderately hard |
| Jiaoxi | 71 | 71 | moderately hard |
| Nanao | 70 | 70 | moderately hard |
| Sanxing | 47 | 47 | soft |