Event Notification Report for May 19, 2020

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
5/18/2020 - 5/19/2020

** EVENT NUMBERS **

Agreement State	Event Number: 54702
Rep Org: ILLINOIS EMERGENCY MGMT. AGENCY Licensee: TESTING SERVICE CORPORATION Region: 3 City: CAROL STREAM State: IL County: License #: IL-01178-01 Agreement: Y Docket: NRC Notified By: Gary Foresee HQ OPS Officer: Brian Lin	Notification Date: 05/11/2020 Notification Time: 21:55 [ET] Event Date: 05/11/2020 Event Time: 00:00 [CDT] Last Update Date: 05/11/2020
Emergency Class: Non Emergency 10 CFR Section: Agreement State	Person (Organization): ANN MARIE STONE (R3DO) NMSS_EVENTS_NOTIFICATION (EMAIL)

Event Text

AGREEMENT STATE REPORT - TROXLER GAUGE DESTROYED BY BULLDOZER

The following was received from the Illinois Emergency Management Agency via email:

"The Illinois Emergency Management Agency (IEMA) communications center was notified at approximately 1942 [CDT] on 5/11/20 by the radiation safety officer for Testing Service Corp., license number IL-01178-01, to advise that a gauge user operating a Troxler model 3440 was struck by a bulldozer. The gauge user is reportedly fine, but the gauge was destroyed. The density gauge, serial number 72404, contains 8 mCi of Cs-137 and 40 mCi of Am-241/Be. Reportedly the source rod remained intact and both sources were identified and recovered into a lead drum. The licensee does possess a Geiger Muller survey meter and reported an external survey rate of 0.4 mR/hour on the outside of the drum (0.0 mR/hour is the reported background). The incident occurred at the southeast corner of Vollmer and Harlem in Matteson, IL. The sources were transported back to the licensee's facility. Agency inspectors are meeting with the licensee at 0700 [CDT] on 5/12/20 to verify the recovery of both sources, perform gross leak tests, advise on appropriate follow-up actions, and perform a site survey in Matteson. The licensee has already been in contact with the manufacturer for advice and instructions for returning the sources."

Illinois Event No.: IL200007

Power Reactor	Event Number: 54718
Facility: Watts Bar Region: 2 State: TN Unit: [] [2] [] RX Type: [1] W-4-LP,[2] W-4-LP NRC Notified By: Philip Stevens HQ OPS Officer: Brian P. Smith	Notification Date: 05/19/2020 Notification Time: 19:57 [ET] Event Date: 05/19/2020 Event Time: 13:29 [EDT] Last Update Date: 05/19/2020
Emergency Class: Non Emergency 10 CFR Section: 50.72(b)(3)(v)(D) - Accident Mitigation	Person (Organization): MARK MILLER (R2DO)

Unit

SCRAM Code

RX Crit

Initial PWR

Initial RX Mode

Current PWR

Current RX Mode

Hot Standby

Event Text

CONTROL ROOM ENVELOPE INOPERABLE

"At 1329 EDT on May 19, 2020, it was discovered that the main control room (MCR) envelope was inoperable due to a control room envelope (CRE) door being found ajar; therefore, this condition is being reported as an eight-hour, non-emergency notification per 10 CFR 50.72(b)(3)(v). The CRE door was closed, restoring the MCR envelope to operable at 1331 EDT. There was no impact on the health and safety of the public or plant personnel.

"The NRC Resident Inspector has been notified."

Non-Power Reactor	Event Number: 54719
Facility: Dow Chemical Company RX Type: 300 Kw Triga Mark I Comments: Region: 0 City: Midland State: MI County: Midland License #: R-108 Agreement: N Docket: 05000264 NRC Notified By: Siaka Yusuf HQ OPS Officer: Brian P. Smith	Notification Date: 05/19/2020 Notification Time: 20:28 [ET] Event Date: 05/19/2020 Event Time: 19:30 [EDT] Last Update Date: 05/21/2020
Emergency Class: Unusual Event 10 CFR Section: 50.72(a) (1) (i) - Emergency Declared	Person (Organization): WILLIAM GOTT (IRD) BETH REED (NPR) GEOFFREY WERTZ (NPR) HO NIEH (NRR) JEFFREY GRANT (IRD)

Event Text

NOTICE OF UNUSUAL EVENT DUE TO DAM BREAK AND POTENTIAL FLOODING AT SITE

At approximately 1930 EDT on May 19, 2020, the Dow Chemical Company TRIGA Reactor received notification of an upstream dam break in Sanford, Michigan and the potential to flood the facility. A Notification of Unusual Event was subsequently declared at 1930 EDT.

The reactor was in a shutdown condition at the time of the event and has been due to COVID-19.

The licensee is monitoring the flood situation in the area and licensee personnel have responded to the site. The NRC remains in the normal mode of operations.

Notified DHS SWO, FEMA Operations Center, CISA IOCC, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).

* * * UPDATE ON 5/21/2020 AT 0850 EDT FROM SIAKA YUSUF TO JEFFREY WHITED * * *

At 0850 EDT on May 21, 2020, the Dow Chemical Company TRIGA Reactor Terminated the Notification of Unusual Event. The event was terminated after flood water receded. The flood water receded faster than was expected.

As stated, the reactor was in a shutdown condition at the time of the event. There was no effect on the reactor due to the flood water.

Notified NPR PM (Wertz and Reed), NRR EO (Miller) IR MOC (Grant), DHS SWO, FEMA Operations Center, CISA IOCC, FEMA NWC (email), DHS Nuclear SSA (email), and FEMA NRCC SASC (email).

Page Last Reviewed/Updated Wednesday, March 24, 2021