AP reports that

The plant operators also deliberately dumped 10,000 tons of tainted water — measuring about 500 times above the legal limit for radiactivity — into the ocean Monday to make space at a storage site for water that is even more highly radiactive.

That’s about 2.4 million gallons. That sounds like a lot, but that much water would fit into a cube about 68.5 feet long on each side. Still, there’s no telling what the total release has been, or will eventually come to.

I don’t follow at all why the reporting here is in tons.  (Caveat for the technical wonks among our readers: if they mean metric tons, then it would be about 2.6 million gallons, not a big difference.) Maybe the Japanese nuclear people use tons when it comes to water volumes, but liters I’d think would be what they’d use.