Three Mile Island lowers power after leak

 

York Daily Record, Pa. --Dec. 10

A non-radioactive steam leak in Three Mile Island's Unit 1 Thursday afternoon has forced the plant to reduce power.

Shortly after noon, an alarm alerted the control room staff to a problem within the plant's intermediate building, said Ralph DeSantis, spokesman for AmerGen Energy, which runs the Dauphin County nuclear power plant.

Neil Sheehan, spokesman for the U.S. Nuclear Regulatory Commission, said the intermediate building is a vital area of the plant, between the reactor and steam/turbine buildings. The building houses pumps, valves and pipes between the plant's reactor and turbine systems.

Two workers entered the building and found the steam leak on an instrument line fitting, DeSantis said.

The leak posed no danger to the public or to plant workers, he said.

Plant operators reduced power by 22 percent. Unit 1, which typically produces 890 megawatts of power, enough to power about 300,000 homes, was producing 150 megawatts Thursday afternoon.

Customers will not experience a lapse in power as a result of the steam leak, DeSantis said.

By Thursday evening, plant crews had stopped the leak and had started to develop a plan to permanently repair it, he said.

No workers were injured during the event, DeSantis said.

Plant officials do not know when the plant will resume full power.

"They will need to troubleshoot this and make repairs," Sheehan said. "Our resident inspectors are following up on this."

 

SIREN TEST: AmerGen Energy tested all of its emergency sirens surrounding Three Mile Island Wednesday evening.

All 96 sirens, within 10 miles of the Dauphin County nuclear plant, sounded, said Ralph DeSantis, spokesman for AmerGen Energy. But six sirens -- four of them in York County -- did not fully rotate -- a problem the company fixed Thursday, he said.

 

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