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Failing Concrete at Seabrook Station:  Top Ten Reasons why C-10 Foundation Asked the NRC for  Public Hearing 

April 11, 2017  The C-10 Research and Education Foundation, Inc. has formally asked the U.S. Nuclear Regulatory Commission (NRC) for a public hearing in the matter of deteriorating concrete at the Seabrook Station nuclear power plant, as well as requesting intervenor status in NRC Docket 50-443.

Debbie Grinnell, board member and former research director, spoke about concrete problems at our 2017 annual public meeting, while board member Chris Nord listened.

The proceeding relates to the License Amendment Request (LAR) 16-03 NextEra Energy Seabrook, LLC (NextEra) submitted in the summer of 2016, seeking to “Revise Current Licensing Basis to Adopt a Methodology for the Analysis of Seismic Category I Structures with Concrete Affected by Alkali-Silica Reaction.”

The C-10 Foundation has long warned of the irreversible concrete degradation known as alkali-silica reaction, or “ASR” that is ongoing at Seabrook Station. C-10 Foundation’s petition lays forth ten contentions that the group asserts merit further investigation and a public hearing by the NRC, including what it sees as insufficient testing of concrete at the Seabrook Station nuclear reactor and lack of transparency as to the test results and the seriousness of degradation.

“We are concerned not only about the public health and safety implications of allowing the current operating license to stand given what we know about the plant’s concrete, but also about the precedent it would set for the entire U.S. nuclear industry,” said Natalie Hildt Treat, Executive Director of the C-10 Foundation. For details on the ten related contentions C-10 sites as grounds for a hearing, read the petition here.

 


C-10 Submits Comments on NextEra License Amendment Request

March 9, 2017 – Members of the C-10 Foundation board of directors submitted comments to the U.S. Nuclear Regulatory Commission relative to NextEra Energy Seabrook LLC’s License Amendment Request (LAR) 16-30. In the LAR, NextEra Energy Seabrook, LLC  seeks to “Revise Current Licensing Basis to Adopt a Methodology for the Analysis of Seismic Category I Structures with Concrete Affected by Alkali-Silica Reaction.”

This docket pertains to the calculations of the concrete’s ability to bear load and withstand a seismic event such as an earthquake.  But in C-10’s view, this LAR is a paper solution. The thousands of tiny cracks and larger ones in the power plant’s concrete dome and retaining walls remain, and the concrete continues to degrade. As noted in our comments, experts have studied this issue, and there is no known solution or remedy. More information on the proceeding is here.  Read our comments.

 


 

Estuaries are some of the most fertile and ecologically significant ecosystems in the world. Pictured here is a snapshot of North Shore’s Great Marsh.