Home NRC Library Document Collections Events, Reports Associated with Event Notification Reports 2020

Event Notification Report for July 30, 2020

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
7/29/2020 - 7/30/2020

** EVENT NUMBERS **

Agreement State	Event Number: 54798
Rep Org: CALIFORNIA RADIATION CONTROL PRGM Licensee: Salem Engineering Group, Inc. Region: 4 City: Fresno State: CA County: License #: 7245-10 Agreement: Y Docket: NRC Notified By: Davood Aboudarda HQ OPS Officer: Ossy Font	Notification Date: 07/22/2020 Notification Time: 17:59 [ET] Event Date: 07/16/2020 Event Time: 23:30 [PDT] Last Update Date: 07/22/2020
Emergency Class: Non Emergency 10 CFR Section: Agreement State	Person (Organization): JAMES DRAKE (R4DO) NMSS_EVENTS_NOTIFICATION (EMAIL)

Event Text

AGREEMENT STATE REPORT - DAMAGED GAUGE

The following was received form the California Radiologic Health Branch (RHB) via email:

"On 7/17/2020, licensee's RSO [(Radiation Safety Officer)] contacted RHB to report an incident in which a portable nuclear gauge (Humboldt 5001EZ SN: 2919, 11 mCi Cs137, 44 mCi Am241:Be) was damaged by a construction truck at approximately 2330 PDT on 7/16/2020. The RSO secured the gauge after notification by the gauge technician and transported the gauge to the licensee's permanent storage location. The RSO determined and confirmed to RHB that the source rod was able to be retracted into the shielded position after the incident. The RSO performed a radiation survey and reported readings of 0.099 mR/hr at 1 meter. RHB will be following up with this investigation."

California 5010 Number: 071720

Power Reactor	Event Number: 54803
Facility: Prairie Island Region: 3 State: MN Unit: [1] [2] [] RX Type: [1] W-2-LP,[2] W-2-LP NRC Notified By: Logan Miller HQ OPS Officer: Andrew Waugh	Notification Date: 07/29/2020 Notification Time: 04:28 [ET] Event Date: 07/28/2020 Event Time: 19:49 [CDT] Last Update Date: 07/29/2020
Emergency Class: Non Emergency 10 CFR Section: 50.72(b)(3)(xiii) - Loss Comm/Asmt/Response	Person (Organization): MICHAEL KUNOWSKI (R3DO)

Unit

SCRAM Code

RX Crit

Initial PWR

Initial RX Mode

Current PWR

Current RX Mode

100

Power Operation

100

Power Operation

100

Power Operation

100

Power Operation

Event Text

FAILED RADIATION DETECTOR

"Radiation monitor RE-69, 'Guardhouse Area Radiation Detector' was found failed on operator rounds. RE-69 is a category A1 piece of equipment that provides the sole means of indication for a parameter used to directly assess emergency action level (EAL) RA3.1, 'dose rate greater than 15 mR/hr in either of the following areas: Control Room (R-1), Central Alarm Station (R-69).' A compensatory measure was subsequently established and the ability to assess EAL RA3.1 has been restored."

There was no impact on the health and safety of the public or plant personnel. The NRC Senior Resident Inspector has been notified.

Page Last Reviewed/Updated Thursday, March 25, 2021