Update: things are just getting worse by the hour:

TEPCO: Leaked water most likely flowed into soil at #Fukushima-1 plant. Readings recorded of 80 million Bq/liter. #Japan #nuclear — Steve Herman (@W7VOA) August 20, 2013

TEPCO: Several hundred tons of highly radioactive water have leaked from storage tanks at #Fukushima-1. #Japan #nuclear — Steve Herman (@W7VOA) August 20, 2013

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Over the weekend we posted an in-depth narrative of what may happen in a theoretical worst case scenario in Fukushima, one in which the government continues to do nothing and pretends all is well, and where the end casualties are millions of innocent Japanese (and other) citizens, whose only crime is believing their government. Sadly, with every passing day the theoretical is becoming all too real, and moments ago reality struck again, when the Nikkei newspaper reported that readings of tritium in seawater taken from the bay near the crippled Fukushima nuclear plant has shown 4700 becquerels per liter.

This was the highest tritium level in the measurement history.

RT has more:

Tokyo Electric Power Company (TEPCO) has detected the highest radiation level in seawater collected in the harbor of the crippled nuclear plant in the past 15 days, Nikkei reports. TEPCO said the highest radiation level was detected near reactor 1. Previous measurements showed tritium levels at 3800 becquerels per liter near reactor 1, and 2600 becquerels per liter near reactor 2. The concentration of tritium in the harbor’s seawater has been continuously rising since May, according to Nikkei. Also on Monday, a leak of highly contaminated water was discovered from a drain valve of a tank dike located on the premises of the nuclear plant, according to Fukushima’s operator responsible for the clean-up. The level of radiation at the site was estimated at 100 millisieverts per hour, while the safe level of radiation is 1-13 millisieverts per year, according to ITAR-TASS news agency. The plant’s operator is currently investigating reasons for the leak, TEPCO said in a statement.

We don't know if simply raising the "safety threshold" again will do it this time, but we do know that trillions of becquerels flowing into the Pacific is a lot to quite a lot:

Earlier, Tepco admitted that an estimated 20 to 40 trillion becquerels of tritium may have flowed into the Pacific Ocean since the nuclear disaster.

Tritium, which slowly but surely is making its way to the United States. But one can't blame TEPCO of doing nothing. Oh wait. One can.

Protective barriers installed to prevent the flow of toxic water into the ocean have failed to do so. The level of contaminated water has already risen to 60cm above the barriers, which has been a major cause of the daily leak of toxic substances, TEPCO admitted. Japan’s Ministry of Industry recently estimated that around 300 tons of contaminated groundwater has been seeping into the Pacific Ocean on a daily basis. TEPCO has promised to reinforce protective shields to keep radioactive leaks at bay.

And if that fails, TEPCO will simply "freeze" the exploded nuclear reactor in an inverted igloo in its latest idiotic MacGuyverian contraption, one which unlike Hollywood, does not have a happy ending when everything goes up, quite literally, in radioactive smoke again.