Tap water hardness in Jeollanam-do

We have published hardness data for 19 cities in Jeollanam-do. The median is 35 mg/L; the hardest water is in Gurye (66 mg/L), the softest in Wando (16 mg/L).

0 % of these cities have hard or very hard water (over 120 mg/L).

Korean waterworks report hardness (경도) in mg/L CaCO₃; the drinking-water standard is 300 mg/L (1,000 mg/L for some sources).

Cities in Jeollanam-do, hardest first

All cities in South Korea →