04/12/2011 08:00 pm ET Updated Jun 12, 2011

Trace Amounts Of Japan Reactor Fall Out Detected In Denver Drinking Water

Radioactive fallout from Japan's ruined nuclear power plants has reached drinking water in Denver and other U.S. cities in trace amounts that authorities today deemed harmless.

Environmental Protection Agency officials have sampled drinking water as part of their regular monitoring of spreading radioactive particles and said similar elevated radiation is expected in the coming weeks.

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