Tap water hardness in Jeollabuk-do

We have published hardness data for 7 cities in Jeollabuk-do. The median is 45 mg/L; the hardest water is in Namwon (58 mg/L), the softest in Muju (18 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 Jeollabuk-do, hardest first

All cities in South Korea →