Event Notification Report for June 24, 2005

NUCLEAR DENSITY GAUGE SOURCE SEPARATED FROM GUAGE

Following troubleshooting to remedy density measurement problems, the Cs-137 source (100 milliCuries) and source holder were found missing from its liquid line gauge mounting. It was then determined that the source and holder had become separated from the gauge and had fallen into a sump directly beneath. The gauge is a Ronan Model SA-1-C5, S/N EE823. The licensee isolated the area and performed surveys with no contamination or abnormal radiation readings noted. The licensee contacted the manufacturer and subsequently contracted with a consultant (Jendco, Inc. of Pittsburg, PA) who retrieved the source and source holder from the sump without incident. The source was found intact and undamaged. The gauge was re-assembled and returned to service.

OFFSITE NOTIFICATION - FUEL OIL SPILL ON LAKE WYLIE NEAR PLANT INTAKE

"At 0741 the control room was notified that a barge that was being used to support drilling activities near the plant intake on Lake Wylie had partially sunk. The barge was supporting a diesel fuel engine used for drilling operations. The fuel oil tank (maximum capacity of 6 gallons) was submerged under the surface of Lake Wylie. At 0840 the duty hazmat personnel on the scene notified the control room that there was fuel oil on the surface of the lake. At approximately 0845 the York County South Carolina 911 telecommunicator was called and informed of the fuel oil spill on Lake Wylie. This notification is being made as a 4-hour non-emergency notification as a result of notifying an offsite agency of the fuel oil spill on Lake Wylie. Efforts are currently underway to secure / contain the fuel oil. No offsite assistance has been requested."

The licensee notified the NRC Resident Inspector.

NUCLEAR DENSITY GAUGE DAMAGED AT JOBSITE

At approximately 1515 EDT on 6/24/05, a CPN Nuclear Gauge, Model NC1DRP, S/N MD00505618 containing two (2) sources, i.e., 10 millicuries Cs-137 and 50 millicuries Am-241:Be, was run over by a loader at a jobsite near the intersection of Olley Lane and Little River Turnpike in Fairfax County, VA. The area was isolated and rad surveys conducted by the RSO confirmed that the source was not exposed (a radiation level of .4mR/hr was measured at a distance of 1 meter). The RSO will package the damaged gauge and return it to the manufacturer for evaluation. No assistance from any HAZMAT/Fire Department personnel was requested or needed.

SAFETY PARAMETER DISPLAY SYSTEM FAILURE IN EMERGENCY OPERATIONS FACILITY

"At 1530, on June 24, 2005, Training personnel reported a problem with the Safety Parameter Display System (SPDS) screens at the Emergency Operations Facility (EOF). Subsequent investigation determined that data was being updated, but the SPDS screens would not respond to keyboard or touch screen commands. SPDS was declared inoperable at 1630.

"The SPDS computer system is designed to monitor and display a concise set of parameters from which the safety status of both units can be readily and reliably determined. The system provides plant status information to the Unit-1 and Unit-2 control rooms, the Technical Support Center (TSC), and the Emergency Operating Facility (EOF).

"The controls and displays in the computer room, both Control Rooms and the TSC were unaffected by this condition.

"A bad communications card was found and replaced at the EOF. SPDS operability was restored at 1735."

The licensee notified the NRC Resident Inspector.