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Event Notification Report for May 18, 2020

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
5/15/2020 - 5/18/2020

** EVENT NUMBERS **


54687 54698 54716

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!!!!! THIS EVENT HAS BEEN RETRACTED.THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor Event Number: 54687
Facility: COOK
Region: 3     State: MI
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: RODNEY PICKARD
HQ OPS Officer: DONALD NORWOOD
Notification Date: 05/01/2020
Notification Time: 11:53 [ET]
Event Date: 05/01/2020
Event Time: 03:54 [EDT]
Last Update Date: 05/15/2020
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(2)(i) - Plant S/D Reqd By Ts
50.72(b)(3)(ii)(A) - Degraded Condition
Person (Organization):
ANN MARIE STONE (R3DO)
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N Y 100 Power Operation 0 Hot Standby

Event Text

TECHNICAL SPECIFICATION REQUIRED SHUTDOWN DUE TO REACTOR COOLANT SYSTEM PRESSURE BOUNDARY LEAKAGE

"At 1000 EDT on May 1 2020, Operations commenced a shutdown of DC Cook Unit 2 to comply with LCO 3.4.13, Condition B Reactor Coolant System (RCS) pressure boundary leakage.

"At 0354 EDT on May 1, 2020, Operations detected an estimated 8 gpm Reactor Coolant System leak. The source of the leak could not be identified and Tech Spec 3.4.13, Condition A was entered for unidentified RCS leakage in excess of the 0.8 gpm limit.

"At 0745 EDT on May 1, 2020, Unit 2 entered LCO 3.4.13, Condition B when the 4-hour limit to complete the required actions of Condition A could not be met.

"At 0945 EDT on May 1, 2020, Unit 2 entered LCO 3.4.13, Condition B when the 4-hour limit to complete the required actions of Condition A could not be met.

"At 0945 EDT on May 1, 2020, inspections inside containment identified the leak as pressure boundary leakage from a pressurizer spray line which also requires entry into LCO 3.4.13, Condition B.

"At 1059 EDT on May 1, Unit 2 was tripped from 15 percent power. All systems functioned normally.

"This event is reportable under 10 CFR 50.72(b)(2)(i), the initiation of any nuclear plant shutdown required by the plant's Technical Specifications as a 4-hour report and under 10 CFR 50.72 (b)(3)(ii)(A), degraded condition, as an 8-hour report. The NRC Resident Inspector has been notified."

* * * PARTIAL RETRACTION ON 5/15/2020 AT 1442 EDT FROM BUD HINCKLEY TO THOMAS HERRITY * * *

"The condition identified in EN #54687, pursuant to 10 CFR 50.72 (b)(3)(ii)(a) has been evaluated, and has been determined not to be RCS pressure boundary leakage. As such, the 8-hour report is being retracted, as it is not an event or condition that results in, 'the condition of the nuclear power plant, including its principal safety barriers, being seriously degraded.'

"The leakage was subsequently determined to be from the tell-tale nipple of a pressurizer spray valve, not from the pressurizer spray line piping as previously reported. The Reactor Coolant Pressure Boundary (RCPB) is formed by the valve body, plug, seat, body to bonnet extension, and bonnet of the pressurizer spray valve. Therefore, the leakage is not RCPB leakage.

"There is no change to the 4-hour report made under 10 CFR 50.72(b)(2)(i), the initiation of any nuclear plant shutdown required by the plant's Technical Specifications.

"The NRC Resident Inspector was notified of this retraction."

Notified R3DO (Stone).

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Agreement State Event Number: 54698
Rep Org: TEXAS DEPT OF STATE HEALTH SERVICES
Licensee: ECS-TEXAS LLP
Region: 4
City: CARROLLTON   State: TX
County:
License #: L05384
Agreement: Y
Docket:
NRC Notified By: ART TUCKER
HQ OPS Officer: BETHANY CECERE
Notification Date: 05/07/2020
Notification Time: 20:41 [ET]
Event Date: 05/07/2020
Event Time: 00:00 [CDT]
Last Update Date: 05/11/2020
Emergency Class: Non Emergency
10 CFR Section:
Agreement State
Person (Organization):
JAMES DRAKE (R4DO)
NMSS_EVENTS_NOTIFICATION (EMAIL)

Event Text

AGREEMENT STATE REPORT - DAMAGED NUCLEAR GAUGE

The following was received from the state of Texas by email:

"On May 7, 2020, the Agency was notified by the licensee that a Humboldt model 5001 EZ was damaged at a temporary job site [in Dallas, TX]. The gauge contains a 40 milliCurie americium-241 source and an 8 milliCurie cesium-137 source. The gauge was struck by the bucket of a Bobcat machine breaking the handle rod. The cesium source was in the fully shielded position. The cesium source could not be operated. The technician set up a barrier and contacted the radiation safety officer (RSO.) The RSO performed a radiation survey and measured the dose rate at two feet from the gauge at 0.15 millirem per hour, which is normal according to the licensee. The gauge was returned to the licensee's facility. No individual received a significant exposure due to this event. Additional information will be provided as it is received in accordance with SA-300."

Texas Incident #: 9764

* * * UPDATE FROM ART TUCKER TO BRIAN P. SMITH AT 1046 EDT ON 5/11/2020 * * *

The following update was received from the state of Texas by email:

"On May 8, 2020, the licensee notified the Agency that the activity of the cesium source involved in this event was 10 milliCuries and not 8 milliCuries as previously reported. Additional information will be provided as it is received in accordance with SA-300."

Notified R4DO (O'Keefe), and via E-mail: NMSS Events Notifications E-mail group

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Power Reactor Event Number: 54716
Facility: Salem
Region: 1     State: NJ
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: Scott Rydell
HQ OPS Officer: Howie Crouch
Notification Date: 05/15/2020
Notification Time: 13:25 [ET]
Event Date: 05/15/2020
Event Time: 09:47 [EDT]
Last Update Date: 05/15/2020
Emergency Class: Non Emergency
10 CFR Section:
50.72(b)(2)(xi) - Offsite Notification
Person (Organization):
CHRISTOPHER LALLY (R1DO)
Unit SCRAM Code RX Crit Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N N 0 Hot Standby 0 Hot Standby

Event Text

OFFSITE NOTIFICATION DUE TO A HYDRAULIC OIL SPILL

"At 0947 [EDT] on 5/15/20, Salem reported to the New Jersey Department of Environmental Protection a sheen on the Delaware River. This discovery did not violate any NRC [Nuclear Regulatory Commission] regulations or reporting criteria. This notification is being made solely as a four-hour, non-emergency notification for a Notification of Other Government Agency. This event is reportable in accordance with 10 CFR 50.72(b)(2)(xi).

"There was no impact on the health and safety of the public or plant personnel.

"The NRC Resident Inspector has been notified."

The licensee will be notifying the National Response Center and Lower Alloways Creek Township. The substance spilled was less than one pint of hydraulic oil.


Page Last Reviewed/Updated Friday, June 19, 2020
Friday, June 19, 2020