TOKYO — A crisis over contaminated water at Japan’s stricken nuclear plant worsened on Saturday when the plant’s operator said it had detected high radiation levels near storage tanks, a finding that raised the possibility of additional leaks.

The operator, Tokyo Electric Power Company, or Tepco, said it had found the high levels of radiation at four separate spots on the ground, near some of the hundreds of tanks used to store toxic water produced by makeshift efforts to cool the Fukushima Daiichi plant’s three damaged reactors. The highest reading was 1,800 millisieverts per hour, or enough to give a lethal dose in about four hours, Tepco said.

http://www.nytimes.com/2013/09/01/world/asia/radiation-near-japanese-plants-tanks-suggests-new-leaks.html