The U.S. Nuclear Regulatory Commission is in the process of rescinding or revising guidance and policies posted on this webpage in accordance with Executive Order 14151 Ending Radical and Wasteful Government DEI Programs and Preferencing, and Executive Order 14168 Defending Women From Gender Ideology Extremism and Restoring Biological Truth to the Federal Government. In the interim, any previously issued diversity, equity, inclusion, or gender-related guidance on this webpage should be considered rescinded that is inconsistent with these Executive Orders.

Steam Generator Tube Wear Data

The following data is provided to help interested parties understand the observed wear in the u-tubes of all four steam generators.  A diagram showing the internal construction of the steam generator has also been provided to help readers understand the components in a steam generator.

Page Last Reviewed/Updated Wednesday, March 11, 2020