Nuclear Regulatory Commission staff will discuss the 2023 safety performance of the
LaSalle nuclear power plant during a public meeting May 22. The two-unit plant operated by
Constellation Energy Generation LLC is located in Marseilles, Illinois, approximately 11 miles
southeast of Ottawa.
The meeting will be held from 4-5 p.m. Central time at the Marseilles Public Library,
155 East Bluff St. in Marseilles. The NRC will present its assessment of the plant’s 2023
performance. Following the presentation, staff responsible for plant inspection and oversight,
including the resident inspectors based at the site, will be available for a question-and-answer
session.
The NRC determined that LaSalle operated safely during 2023. All inspection findings and
performance indicators were green or very low safety significance. As a result, LaSalle remains
under the NRC’s normal level of oversight, which entails thousands of hours of inspection each
year.
The NRC Reactor Oversight Process uses color-coded inspection findings and indicators to
measure plant performance. The colors start at green and increase to white, yellow or red,
commensurate with the safety significance of the issues involved. Inspection findings or
performance indicators with more than very low safety significance trigger increased NRC
oversight.
Plant inspections are performed by two NRC resident inspectors and inspection specialists
from the agency’s Region III office in Lisle, Illinois.
The annual assessment letter for LaSalle is on the NRC website. Current performance
information is also available and updated on a quarterly basis.
