NRC CAL – NOV (White)

On April 1, 2008, a Notice of Violation (NOV) was issued for violations associated with a White Significance Determination Finding. The NOV involved violations of 10 CFR Part 50, Appendix B, Criterion XVI, "Corrective Actions", and 10 CFR Part 50, Appendix B, Criterion III, "Design Control". Specifically, the licensee failed to take timely corrective actions after the identification of extensive corrosion on essential service water riser pipes and failed to verify the adequacy of the methodology and design inputs in calculations that supported the decision to accept three degraded essential service water riser pipes for continued service.