Event Notification Report for June 13, 2007

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THIS IS NOT A NEW REPORT.

This event report was originally withheld from public release under the NRC's policy for protecting sensitive unclassified information. The NRC has reevaluated this policy and is now making this event report available to the public with suitable redactions.
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INFORMATION REPORT REGARDING DEGRADATION OF MONITORING AND DETECTION OF BOUNDARY

Degradation of monitoring and detection related to owner controlled area boundary. Contact the Headquarters Operations Officer for details.

The licensee will inform the NRC Resident Inspector.

* * * UPDATE ON 06/18/07 AT 1347 ET PER LARRY ANTHONY (SECURITY OPERATION MANAGER) TO MACKINNON * * *

Per follow-up this is not a reportable NRC report. It is an officer performance adhering to procedure.

The NRC Resident Inspector will be notified of this update by the licensee.

R2DO (Scott Shaeffer) and FSME (Greg Morell)

* * * UPDATE ON 05/11/08 BY H. Crouch * * *

THIS IS NOT A NEW REPORT.

This event report was originally withheld from public release under the NRC's policy for protecting sensitive unclassified information. The NRC has reevaluated this policy and is now making this event report available to the public with suitable redactions.
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NOTIFICATIONS MADE FOR DETECTION OF TRITIUM IN ONSITE WATER SAMPLES

"On May 8, 2007, measurable levels of tritium were identified in two manholes (i.e., MW-5 and MW-6) that route cable to a nearby meteorological tower. The manholes are located within the boundaries of the site owner controlled area. The manholes are also in close proximity to the Storm Drain Stabilization Pond (SDSP). The SDSP is an area of approximately 64 acres consisting of a non-lined perimeter dike of approximately 12 to 15 feet in height. The site storm drain system collects in the storm drain collector basin and is then pumped to the SDSP. The storm drain collector basin receives overflow from the Turbine Building air-wash system, which contains very small amounts of tritium. By plant design, the tritiated water of the SDSP is then pumped into the intake canal during monitored, controlled releases, compliant with all permits and regulations.

"As a result of ongoing investigations to determine the source and potential migration path of the tritium, an increased environmental sampling program was initiated. On June 13, 2007, tritium levels in excess of Nuclear Energy Institute (NEI) voluntary reporting criteria were confirmed to be present in new onsite shallow groundwater wells.

"Immediate corrective actions taken were to perform additional sampling of areas surrounding the stabilization pond and [to reconfigure] the Turbine Building air-wash system. The reconfiguration of the turbine building airwash system will be done to eliminate the designed pathway of water to the storm drain collection basin and to the storm drain stabilization pond.

"Additional corrective actions include installation of additional monitoring wells at various locations to determine groundwater flow and checking for the presence of tritium.

"There is no indication that tritium has migrated into drinking water sources and all offsite monitoring has resulted in non-detectable levels of tritium. It is believed that the likely source of the tritiated water is seepage from the SDSP. The following agencies will be updated on the status of the onsite tritium samples and informed of the pending press release: State Officials, City of Southport, Brunswick County, NEI, INPO, and ANI."

The Licensee notified the NRC Resident inspector.

AGREEMENT STATE REPORT FROM MASSACHUSETTS - CONTAMINATION DUE TO IODINE-131

This Agreement State report from the Commonwealth of Massachusetts was received via facsimile:

"Cat moved (kicked) during I-131 injection resulting in a couple of drops on veterinarian gloved hands, exam table, and floor. Contaminated Area subsequently mopped which seemed to spread more than clean the area. Contaminated area covered with plastic and access was restricted for more than 24 hours. Inside the room, the highest measurements on the floor, with a Ludlum 44-88 GM, was 12 Mr/hr on one spot, and 2-5 Mr/hr in all other floor areas - all measurements are at 1 cm. There was no personal contaminations and one small spot on a technicians sweatshirt sleeve which measured 15 mR/hr at 1 cm. With the 44-88 GM. All thyroid measurements indicate no internal intake of I-131. "

Event type Description: Contaminated Area restricted for more than 24 hours.

Cause of Description: Cat moved (kicked) during I-131 injection resulting in a couple of drops on veterinarian gloved hands, exam table, and floor.

Contributing Factor: Contaminated Area subsequently mopped which seemed to spread more than clean the area.

Docket No.: 06-7113