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Event Notification Report for December 19, 2019

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
12/18/2019 - 12/19/2019

** EVENT NUMBERS **

Agreement State	Event Number: 54432
Rep Org: NE DIV OF RADIOACTIVE MATERIALS Licensee: DELONG COMPANY Region: 4 City: Omaha State: NE County: License #: GO-0788 Agreement: Y Docket: NRC Notified By: DEB WILSON HQ OPS Officer: BRIAN LIN	Notification Date: 12/10/2019 Notification Time: 10:14 [ET] Event Date: 12/09/2019 Event Time: 00:00 [CST] Last Update Date: 12/10/2019
Emergency Class: NON EMERGENCY 10 CFR Section: AGREEMENT STATE	Person (Organization): JEREMY GROOM (R4DO) NMSS_EVENTS_NOTIFICATION (EMAIL)

This material event contains a "Less than Cat 3" level of radioactive material.

Event Text

AGREEMENT STATE REPORT - LOST TRITIUM EXIT SIGN

This is a summary of information received from the state of Nebraska via a phone call:

On December 2, 2019, the state of Nebraska identified a lost tritium exit sign that was improperly transferred by the licensee to the state of Wisconsin. The general licensee indicated that they transferred the exit sign to a electronics company in Wisconsin, which was not licensed to possess radioactive materials. It is believed that the sign was reused by the electric company. The company was contacted and is working with the Wisconsin Department of Health on ascertaining the exit sign's location.

The tritium exit sign is a Isolite model 2000 (S/N: H114041) with an activity of 12.57 Ci.

No further investigation is planned at this time and Nebraska has closed the event.

Nebraska incident number: NE190006

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	Event Number: 54434
Rep Org: NE DIV OF RADIOACTIVE MATERIALS Licensee: CELERION INC. Region: 4 City: LINCOLN State: NE County: License #: 02-61-01 Agreement: Y Docket: NRC Notified By: BRYAN MILLER HQ OPS Officer: ANDREW WAUGH	Notification Date: 12/10/2019 Notification Time: 13:25 [ET] Event Date: 11/12/2019 Event Time: 00:00 [CST] Last Update Date: 12/10/2019
Emergency Class: NON EMERGENCY 10 CFR Section: AGREEMENT STATE	Person (Organization): JEREMY GROOM (R4DO) NMSS_EVENTS_NOTIFICATION (EMAIL)

This material event contains a "Less than Cat 3" level of radioactive material.

Event Text

AGREEMENT STATE REPORT - LOST LICENSED NUCLEAR MATERIAL

This is a summary of information received from the state of Nebraska via a phone call:

On November 12, 2019, the licensee packaged low level waste into 55-gallon barrels to be shipped to a disposal facility. On December 3, 2019, the disposal facility arrived to pick up the waste and discovered that one of the barrels was missing. The missing barrel contained 11 mCi of C-14. It is believed that the waste was improperly disposed of in another waste stream.

The investigation is ongoing at this time and the event is open with the state of Nebraska.

Nebraska incident number: NE190004

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

Power Reactor	Event Number: 54452
Facility: FERMI Region: 3 State: MI Unit: [2] [] [] RX Type: [2] GE-4 NRC Notified By: ETHAN HAUSER HQ OPS Officer: OSSY FONT	Notification Date: 12/18/2019 Notification Time: 15:27 [ET] Event Date: 12/18/2019 Event Time: 09:08 [EST] Last Update Date: 12/18/2019
Emergency Class: NON EMERGENCY 10 CFR Section: 50.72(b)(3)(v)(C) - POT UNCNTRL RAD REL	Person (Organization): ERIC DUNCAN (R3DO)

Unit

SCRAM Code

RX Crit

Initial PWR

Initial RX Mode

Current PWR

Current RX Mode

100

Power Operation

100

Power Operation

Event Text

SECONDARY CONTAINMENT PRESSURE DEGRADED

"On December 18, 2019, at 0908 EST, with the East and Center Reactor Building HVAC (RBHVAC) trains in service, secondary containment pressure degraded to the point where the Technical Specification (TS) requirement for secondary containment pressure was not met and secondary containment was declared inoperable. Secondary containment pressure did not meet the TS required limit for approximately four minutes. The maximum secondary containment pressure observed during that time was approximately 0.064 inches of vacuum water gauge.

"Secondary containment pressure was returned to within the TS operability limit of greater than or equal to 0.125 inches of vacuum water gauge (TS SR 3.6.4.1.1) by starting Division 1 of the Standby Gas Treatment System (SGTS). Secondary containment was declared Operable at 0912 EST. A modulating damper associated with the Center train of RBHVAC was identified as not properly controlling; an investigation is in progress. RBHVAC was manually secured to support problem identification and resolution. Secondary containment pressure is currently stable with Division 1 SGTS in service. There were no radiological releases associated with this event.

"Declaring secondary containment inoperable is reportable under 10 CFR 50.72(b)(3)(v)(C) as an event or condition that could have prevented the fulfillment of a safety function needed to control the release of radioactive material.

"The NRC Resident Inspector has been notified."

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