The chairman of the Nuclear Regulatory Commission will visit the troubled San Onofre nuclear power plant on the California coast this week, in the midst of a probe into excessive wear in tubing.
The agency said Wednesday NRC Chairman Gregory Jaczko will tour the plant Friday, and meet later with reporters.
The NRC says the twin reactors at San Onofre, located between San Diego and Los Angeles, will remain shut down while investigators try to determine why tubing in massive steam generators that carry radioactive water is eroding at an unusual rate.
