Event Notification Report for October 19, 2020

UPDATE TO ACCEPTANCE CRITERIA FOR ITAAC

"In accordance with 10 CFR 52.99(c)(2) as described in NEI 08-01, Industry Guideline for the ITAAC Closure Process Under 10 CFR Part 52, Vogtle Units 3 and 4 Construction is making this notification to the NRC for determining that Inspections, Tests, Analyses and Acceptance Criteria (ITAAC) 2.3.05.13a.ii (Index No. 344) for Unit 4 requires additional actions to restore the completed status. The ITAAC Closure Notifications for Unit 4 ITAAC 344 was submitted on July 22, 2020 (ML20204B029).

"On October 19, 2020, it was determined that maintenance activities for the Unit 4 Polar Crane auxiliary hoist holding brake used a different approach for Post Work Verification (PWV) than the original test described in the ICN [ITAAC Closure Notification] for ITAAC 344. The alternate PWV used a test method that is standard industry practice and in accordance with ASME B30.2 to demonstrate that the Acceptance Criteria was met.

"An ITAAC Post Closure Notification will be submitted in accordance with 10 CFR 52.99(c)(2) and NEI 08-01.

"The 10 CFR 52.99(c)(4) All lTAAC Complete Notification has not been submitted for VEGP [Vogtle Electric Generating Plant] 4. The NRC Resident Inspector has been notified."

EN Revision Imported Date: 10/29/2020

EN Revision Text: AGREEMENT STATE REPORT - LOST AND FOUND PORTABLE GAUGE

The following was received from the State of Washington via email:

"At approximately 1430 [PDT] on October 19, 2020, a portable gauge technician, working for GN Northern, had completed performing compaction tests at Mt. Adams Elementary School in Harrah, Washington. At the end of the job, about 1500 [PDT] he placed his gauge (not in its case) on his pickup tailgate and did his write-up. Then at approximately 1515 [PDT] he drove off down the highway toward the GN Northern's home office in Yakima with the gauge on the tailgate. Then at approximately 1530 [PDT], the technician looked behind and noticed his tailgate down and remembered the gauge on the tailgate but [was] no longer there. The technician then turned around to look for it for about three (3) hours. He then called the RSO [Radiation Safety Officer] of GN Northern, and reported what had happened. After returning to Yakima the two of them looked for the gauge with flashlights along the highway but could not find it. The RSO then called 206-Nuclear and reported it to the Radiological Emergency Preparedness Section who then notified the Radioactive Materials Section the following morning. The Radioactive Materials Section then learned on the morning of October 20, 2020 from the RSO and the Washington State Patrol (WSP) that a private citizen ran over the gauge during the afternoon of October 19th and notified the WSP. At approximately 1600 [PDT] on October 19th, a WSP Trooper was notified by dispatch that there was a male individual at the WSP office in Union Gap, WA with a damaged gauge that he had struck on the highway and drug it while it was lodged underneath until he could [pull] over. The Union Gap police had also stopped to assist and advised the two males to deliver the gauge to the WSP for safe keeping. WSP Troopers took the gauge and delivered it to the WSP impound facility in Union Gap, WA for safe keeping. Meanwhile, during the afternoon of October 19th, GN Northern had notified Yakima County Sherriff's Department. Shortly after, the Yakima County Sherriff's Department notified other law enforcement agencies including WSP. Therefore, at approximately 0730 [PDT] on October 20th, WSP called GN Northern to let them know that they have their gauge. GN Northern then came and picked up their damaged gauge from WSP at approximately 0830 [PDT] on October 20, 2020."

WA incident no.: WA-20-021


* * * UPDATE ON 10/28/2020 AT 1610 EDT FROM STEVE MATTHEWS TO OSSY FONT * * *

The following update was received from Washington State via email:

"The WSP personnel were not able to perform an adequate survey to check for external radiation levels or count wipes for removable contamination from a possible breech of one or both sources. Therefore, [on 10/21/2020,] one of the inspectors from the Richland office drove to Yakima to perform radiation and contamination checks. To summarize, there was no removable contamination and no radiation levels above what would be expected while the sources are in their shielded positions. Hence, while the portable gauge has been damaged beyond repair, the source holders remain intact."

Notified R4DO (Pick) and NMSS Events Notification via email.

THIS MATERIAL EVENT CONTAINS A "LESS THAN CAT 3" LEVEL OF RADIOACTIVE MATERIAL

Sources that are "Less than IAEA Category 3 sources," are either sources that are very unlikely to cause permanent injury to individuals or contain a very small amount of radioactive material that would not cause any permanent injury. Some of these sources, such as moisture density gauges or thickness gauges that are Category 4, the amount of unshielded radioactive material, if not safely managed or securely protected, could possibly - although it is unlikely - temporarily injure someone who handled it or were otherwise in contact with it, or who were close to it for a period of many weeks. For additional information go to http://www-pub.iaea.org/MTCD/publications/PDF/Pub1227_web.pdf

AGREEMENT STATE REPORT - DAMAGED GAUGE

The following was received from the South Carolina Department of Health and Environmental Control (The Department) via email:

"On October 20, 2020, at 0930 EDT, the Department was notified by the licensee's RSO [(Radiation Safety Officer)] that one of its gauges had been struck by a passing pickup truck while taking a measurement. The RSO stated that the gauge was able to be return to the fully shielded and locked position. The gauge damage was only to the electronics side of the gauge and did not damage the sources. The gauge is a Humboldt Model 5001 EZ (serial number: 9568) and contains 11 mCi of Cs-137 and 44 mCi of Am-241/Be."

AGREEMENT STATE REPORT - SOURCE DISCONNECT

The following information was received from the California Department of Public Health, Radiologic Health Branch via email:

"On October 19, 2019, the RSO [Radiation Safety Officer] for APPlus RTD, USA, contacted the Radiologic Health Branch regarding a source disconnect event at the Phillips 66 Los Angeles refinery. The device was a INC Ir-100 exposure device (serial number not reported) with an INC Model 32 Ir-192 source (serial number and activity not reported). The disconnect occurred while the source was cranked out of the device for an exposure. After the disconnect was discovered, the radiographer stopped cranking the source, isolated the area and contacted the RSO about the incident. After arriving at the scene, the RSO and alternate RSO assessed the situation and then proceeded to return the source back into the exposure device. The licensee's investigation into this event is ongoing and will be reviewed further by the California Department of Public Health."

CA 5010 No.:101920

MAXIMUM LICENSED POWER LEVEL EXCEEDED

"During the course of operations, a potential error in the power calibration of the PUR-1, License Number R-87, was discovered. This calibration error would result in a special report requirement as specified in [(Technical Specification)] TS 6.7.b.1.c.vi, which is that an observed inadequacy in the implementation of a procedural control such that this inadequacy could have caused the development of an unsafe condition with regards to reactor operations. By extension the miscalibration caused a true reactor power higher than the measured reactor power. As such, this likely resulted in the operation in violation of the limiting condition for operation as established in TS Section 3 Table I and operation with an actual safety system setting for a required system less conservative than the limiting safety system settings specified in the Technical Specifications. These reporting requirements are Part i. and ii. of TS 6.7.b.1.c. The calibration error implicates a violation of the maximum licensed power level of 12 kW. The Safety Limit was not exceeded at any point."

EN Revision Imported Date: 8/19/2021

EN Revision Text: AGREEMENT STATE REPORT - LEAKING SOURCE

The following information was received via E-mail:

"MaineHealth Maine Medical Center reported a leaking Cs-137 source (Eckert & Ziegler Model RV-137-200U, Serial No.: 1490-24-6) that contained an estimated activity of 5.84 MBq (157.8 microCi). The incident was discovered during a semi-annual leak test performed on 10/19/2020. Leak test results revealed 950.9 Bq (0.0257 microCi). The Cs-137 contamination was contained in the drawer the source was stored in. The assumption was made that the source was still leaking and MaineHealth sealed it in its storage lead pig. The outer surface of the lead pig was cleaned and wiped, resulting in removable contamination of less than 200 dpm. The pig was placed in a plastic bag as an extra means of containment and the bag was sealed and labeled. All other items that were contaminated or potentially contaminated in the clean-up process were also placed in a plastic bag, sealed, and labeled. The drawer was cleaned and a final wipe test confirmed that removable contamination was below 200 dpm. The staff who used the source were notified that it was considered out of service and should not be handled or used. The source remained stored in the hot laboratory pending finalization of plans for repair or disposal."

Maine Event Report ID No.: ME 20-004