Is Japan Tap Water Safe To Drink?

Yes! The tap water is safe to drink.

Tap water supplied by the City of Japan, Missouri, is treated and regulated under Missouri Department of Natural Resources and U.S. Environmental Protection Agency drinking water standards. It is generally safe to drink when no boil-water advisory or other public notice is in effect.

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Water Sources
Drinking Fountains

Water from a private well is not regulated in the same way and should be tested regularly for bacteria, nitrates, and other contaminants. Residents should follow any notices from the city or local health authorities, especially after water-main breaks or system repairs.

Last checked: 2026-08-31

United States is ranked as number 15 globally with a score of 96.2% in the water quality EPI research conducted by Yale University.

Source of Water in Japan, United States

Tap water in Japan, Missouri, comes from the City of Japan’s municipal water system. The system uses groundwater pumped from local wells.

The water is treated and disinfected before it enters the distribution system. It is then delivered through the city’s water mains to homes and businesses.

Japan Drinking Fountains

Public drinking fountains in Japan, Missouri, are generally safe to use because municipal tap water is treated and tested under U.S. drinking water standards. Fountains connected to the public water system typically provide the same water quality as household taps.

Avoid fountains marked out of service or with a boil-water notice, and choose fixtures that appear clean and well maintained. If the water is discolored, has an unusual odor, or the fountain is damaged, use another source.

Drinking Water Map

Here is a map showing all the locations of drinking water spots in Japan. You can click on each water drop to open the spot directly in Google Maps for directions. For easy access on the go, download our iOS app to find water fountains nearby.

Nearby Places

Union (34 km)

About the Author

Hi, I'm Emily Hartman, a researcher and water quality specialist with a background in public health.

I've spent the last few years studying how everyday water systems impact our health, and I'm passionate about making that information clear and useful for everyone.

Safe, clean tap water isn't just my job, it's something I truly care about.

Disclaimer

* The information provided on this website regarding the safety of tap water in Japan is sourced from reputable sources such as the World Health Organization (WHO), local water authorities, and the Environmental Performance Index (EPI) from Yale University. While we strive to ensure accuracy and reliability, it's important to note that water quality can vary over time and may be subject to factors beyond our control. Users are encouraged to verify the current water quality status with local authorities or consult additional resources before making decisions regarding water consumption. We disclaim any liability for actions taken based on the information provided on this website.