Contaminated groundwater accumulating under the crippled Fukushima nuclear power plant has risen 60cm above the protective barrier, and is now freely leaking into the Pacific Ocean, the plant’s operator TEPCO has admitted. The Tokyo Electric Power Company (TEPCO), which is responsible for decommissioning the damaged Fukushima Daiichi nuclear plant, on Saturday said the protective barriers that were installed to prevent the flow of toxic water into the ocean are no longer coping with the groundwater levels, Itar-Tass reports. An aerial view shows workers wearing protective suits and masks work at a construction site (C) of the shore barrier to stop radioactive water from leaking into the sea at Fukushima Daiichi nuclear power plant on August 9, 2013. (Reuters/Kyodo) The contaminated groundwater, which mixes with radioactive leaks seeping out of the plant, has already risen to 60cm above the barriers – the fact which TEPCO calls a major cause of the massive daily leak of toxic substances.