On 12 June 2020, Japan provided the IAEA with a copy of a report on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station (NPP) ?during March, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.

The report contains information on discharges from the subdrain and groundwater drain systems, as well as bypassing groundwater pumped until the month of March at the Fukushima Daiichi NPP. In both cases, in advance of the action, TEPCO analyzes the quality of the groundwater to be discharged and announces the results. These results confirm that the radiation level of sampled water are substantially below the operational targets set by TEPCO.