Water Quality and Water Resources
The effects of radioactivity on treated water and raw water
The effect on purified water by radioactivity
The results of measuring the radioactive materials（＊）in treated water (tap water) and raw water are published on the following business day after the sample was taken. At present no radioactive materials were detected in treated water (tap water) or untreated water
＊indicates radioactive iodine and cesium
2019
| Main purification plant | Purification plant in Tama area |
|---|---|
| Jan,Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec |
Jan, Feb, Mar, Apr,May, Jun, Jul, Aug, Sep, Oct, Nov, Dec |