safety– tag –

It is often said that "tap water in Japan is safe to drink," but recently, concerns such as "tap water is dangerous," "you should use a water purifier," and "bottled mineral water is more reliable" have been spreading anxiety. But is tha...

– A Comprehensive Overview from Drilling Risks to Cost – 15% of Japan’s tap water comes from groundwater (Japan Water Works Association, 2024).Some cities, such as Kumamoto and Akishima, rely 100% on groundwater for their tap water. Howe...