Toxic waste produced by one of the world's worst nuclear disasters will be dumped into the sea, according to the head of the Japanese company tasked with cleaning up the radioactive mess. Takashi Kawamura, chairman of Tokyo Electric Power Company (TEPCO), told foreign media that nearly 777,000 tons of water tainted with tritium, a byproduct of the nuclear process that is notoriously difficult to filter out of water, will be dumped into the Pacific Ocean as part of a multibillion-dollar recovery effort following the Fukushima nuclear disaster in 2011. The company has yet to deal with the water that was used to cool the plant's damaged reactors, causing it to become tainted with tritium. Tepco wants to release the contaminated water that is being stored in hundreds of tanks at the plant into the ocean. According to Reuters, this is a common practice at functioning nuclear plants. The plan to dump tritium-contaminated water into the sea was met with opposition by local fishermen, who say their industry has suffered enough in the aftermath of the environmental crisis. Dozens of countries and the European Union now ban certain fish imports from Japan following the disaster. As for the rest of the Fukushima prefecture, life has started to resume, albeit slowly. Of the estimated 150,000 who fled, only around 13 percent have come back.