On 11 October 2023, Japan provided the IAEA with a copy of a report during July and August, on the discharge record and the seawater monitoring results at the Fukushima Daiichi Nuclear Power Station, which the Ministry of Foreign Affairs has sent to all international Missions in Japan.
The reports contain information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the months of July and August respectively. 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.