Results of groundwater analysis have shown no significant change of radioactivity in sampled groundwater at Fukushima Daiichi nuclear power plant, according to a regular report?on release and post-release monitoring of "groundwater bypassing" which was circulated by Japan on 1 October?to?all missions in Tokyo.?

The report?covers the record and monitoring?data for?groundwater releases at Fukushima Daiichi on the?1st,?9th, 16th, 23rd?and 30th?of September. It also?includes measurements taken by Tokyo Electric Power Corporation (TEPCO) during and after the groundwater releases, as well as detailed analysis by a third-party institution of the same groundwater.?The?results show that?the radioactive levels of sampled groundwater are substantially below the operational targets.