In a meeting with opposition Democratic Party of Japan lawmakers Friday, senior TEPCO official Kazuhiko Yamashita said the water situation was "not under control," appearing to contradict Abe. DPJ leaders said they will demand Abe clarify his IOC speech.
TEPCO later issued a statement to explain that what Yamashita meant was isolated incidents such as tank leaks and did not dispute Abe's comment.
Japanese officials have acknowledged that the ground water contaminated with radioactive leaks from the melted reactors has been seeping into the ocean since soon after the March 2011 disaster. Recent leaks from storage tanks holding radioactive water have also added to concerns.
The plant has been reporting spikes in radioactive tritium from underground water samples near a major tank leak last month. TEPCO said Saturday tritium in the latest sample measured 150,000 becquerels per litre, more than twice the limit allowed for release into the ocean.
Experts generally agree that overall impact from the contamination gets diluted becomes negligible as it further spreads into the sea.
Lake Barrett, a former US nuclear regulator and an outside advisor to TEPCO, agrees with Abe.
"Now, to get into a little, tiny detail about it, is there a little, tiny bit of runoff that may have cesium in it? The answer is, yes there is, but that's still under control from a public health and safety and environmental protection point of view," he told the Associated Press.
- AP