he Fukushima Dai-ichi site has a considerable number of fuel rods on hand, according to information provided Thursday by Toyko Electric Power Co., which owns the atomic complex: There are 3,400 tons of fuel in seven spent fuel pools within the six-reactor plant, including one joint pool storing very old fuel from units 3 and 4. There are 877 tons in five of the reactor cores. Officials have said that the fuel in Unit 4’s reactor vessel was transferred to its spent fuel pool when the unit was temporarily shut in November.
http://news.yahoo.com/s/ap/as_japan_earthquake_plutonium
In the post that you responded to I was questioning the 11500 fuel bundles (rods) of the original post, and this article talks about 3400 tons and that would be a little over 3400 fuel bundles (rods). Most of these units are pretty old and apparently the Japanese haven't got the fuel reprocessing plant up and running. 3400 + 877 is about 24 to 30 complete fuel loads which sound about right for 6 units when at least 2 of the units are over 30 years old and all but 2 I believe are greater than 22 years old.