U.S. sub leaks a bit of radioactive water in Japan
Sunday, August 03, 2008 Mari Yamaguchi
Associated Press
Tokyo- The U.S. Navy said that one of its nuclear-powered submarines had leaked minimally radioactive water earlier this year, threatening to cause a stir in Japan, where both the U.S. military presence and its nuclear vessels are controversial.
The Navy said Friday that it discovered the leak July 17 when a gallon of water spilled from a valve while the submarine was in dry dock for routine maintenance at Pearl Harbor in Hawaii. An investigation showed water may have been slowly leaking from the valve since March as the Los Angeles-class submarine traveled around the Pacific.
The total amount of radioactivity released into the environment from the USS Houston at each stop was less than one half a microcurie, said U.S. Pacific Fleet spokesman Capt. Scott Gureck.
He said that was a negligible amount, equivalent to the radioactivity of a 50-pound bag of fertilizer.
Akihiro Yoshida, a city official in Sasebo, where the USS Houston made a port call in late March, said that government monitoring showed no abnormal increase of radioactivity in the area's waters during the submarine's calls.
"Still, we are rather concerned," Yoshida said.
Many people in Japan, the only country to have suffered atomic bombings, are sensitive about the military use of nuclear technology and the presence of American forces.
News of the incident comes just weeks ahead of the controversial arrival of the nuclear-powered aircraft carrier USS George Washington to be based in Yokosuka, just south of Tokyo.
The carrier's arrival originally was set for August under a Japan-U.S. security alliance but was delayed until late September because of a fire aboard the vessel in May.
The George Washington's deployment already has triggered protests, and the fire increased the concerns that many Japanese have about nuclear power.
Masahiko Goto, a lawyer representing a citizens group opposing the George Washington's deployment, sharply criticized the U.S. Navy.
"They had discovered the radiation leak weeks ago and did not inform the Japanese government immediately," Goto said in a statement.
"The U.S. Navy's handling of the accident and lack of transparency showed there is no way we can trust them," he said.
The Navy said it didn't publicize the leak itself because the radioactivity released was below a level that would warrant a public announcement.
