This is a non-emergency event notification.
During planned outage work, H. B. Robinson Steam Electric Plant (HBRSEP), Unit #2 personnel encountered soils with a petroleum odor in an area excavated for inspection of Emergency Diesel Generator fuel oil piping. The inspections were being performed as part of the Buried Piping and Tanks Inspection Program.
Pressure testing of the fuel oil underground piping on 10/14/13 was satisfactorily completed. Additionally, ultrasonic testing (UT) performed on the exposed diesel fuel oil pipes confirmed piping integrity. These fuel oil lines are typically pressure tested on a two year frequency and were previously tested in 2012 with similar results. The release was determined to be historical and transient in nature.
The soil that was removed was replaced with uncontaminated soil. Any future actions will be coordinated with SC DHEC.
HBRSEP, Unit #2 personnel are notifying SC DHEC in accordance with reporting guidance regarding the release of petroleum from an unregulated source.
This event is reportable per 10 CFR 50.72(b)(2)(xi) as described in NUREG-1022, based on an event related to protection of the environment for which a notification to other government agencies has been made.
The health and safety of the public was not affected.
The NRC Resident Inspector has been notified.
