Hanford Says Alert Last Month Came From Old Contamination - NBC Right Now/KNDO/KNDU Tri-Cities, Yakima, WA |

Hanford Says Alert Last Month Came From Old Contamination

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RICHLAND, Wash. - Workers at Hanford say the unusual radiation readings that led them to declare an emergency operations alert last month came from old contamination.

Inspectors say they found no evidence of a new leak from a waste removal system or its transfer hoses.

Hanford told its employees on Tuesday an investigation found insulating blankets, that were used to shield radiation on a small area, had shifted.

That caused the radiation readings to go up during routine monitoring.

Because the abnormal reading could have been caused by a leak, workers at the C Tank Farm were evacuated overnight back in August. Workers in central Hanford and near the K Reactors were ordered to take cover indoors.

Before work restarts this week, the hot spot will be recovered.

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