On 1 December 2015, Japan provided the IAEA with a copy of a report on the discharge record and the sea water monitoring results at the Fukushima Daiichi Nuclear Power Station during November, which the Ministry of Foreign Affairs has sent to all missions in Tokyo.
The report contains information on discharges from the subdrain and groundwater drain systems, as well as on groundwater bypassing conducted during the month of November. 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.
At the same time, TEPCO has also posted a document on its website concerning the current work environment and future improvements onsite.