BOSTON (AP) — Two Massachusetts lawmakers want the Nuclear Regulatory Commission to explain how the discovery of deteriorating concrete at New Hampshire’s Seabrook nuclear power plant would affect people living near the facility and its workers.

Last year’s discovery that groundwater has deteriorated by 22 percent the concrete of an underground tunnel prompted regulators to delay until late this year a safety report connected with the plant’s request for a 20-year license extension.

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U.S. Reps. Edward Markey and John Tierney on Friday asked regulators to hold a public meeting to explain the problem to people living near the plant and working in it.

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The lawmakers also pressed nuclear regulators to reject Seabrook’s application for license extension beginning in 2030.

The nuclear plant is located near Massachusetts communities represented by Markey and Tierney.

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Copyright 2012 The Associated Press.