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Event Notification Report for June 15, 2017

U.S. Nuclear Regulatory Commission
Operations Center

Event Reports For
06/14/2017 - 06/15/2017

** EVENT NUMBERS **


52789 52792 52802 52803

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Agreement State Event Number: 52789
Rep Org: SC DIV OF HEALTH & ENV CONTROL
Licensee: MEAD & HUNT, INC.
Region: 1
City: LEXINGTON State: SC
County:
License #: 840
Agreement: Y
Docket:
NRC Notified By: ANDREW M. ROXBURGH
HQ OPS Officer: STEVE SANDIN
Notification Date: 06/06/2017
Notification Time: 07:34 [ET]
Event Date: 06/05/2017
Event Time: 16:30 [EDT]
Last Update Date: 06/06/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
BLAKE WELLING (R1DO)
NMSS_EVENTS_NOTIFICA (EMAI)

Event Text

AGREEMENT STATE REPORT - TROXLER DENSITY GAUGE DAMAGED AT JOBSITE

The following information was provided by the State of South Carolina via email:

"Event Location: Highway 51 South of Pamplico, SC

"Event Type: Damaged gauge

"Event Description: At approximately 4:30 PM on June 5, 2017, the Department [South Carolina Department of Health and Environmental Control] was notified by [a representative] of Mead & Hunt, Inc. that it had a density gauge damaged by a trachoe while at a jobsite on Highway 51 South of Pamplico, SC. The on-call duty officer responded to the scene around 7:30 PM and met [the representative]. Upon arriving at the scene, the duty officer observed that the area around the gauge had been properly roped off. The duty officer and [the representative] approached the gauge with survey meter to identify the level of damage. The gauge was a Troxler 3440 containing 8 millicuries of Cs-137. A radiation readings of 12-16 mR/hr on the surfaces of the gauge were observed and found to be within the normal radiation profile for this gauge. The handle of the gauge was broken off causing the gauge to not properly function. The source shutter was found to be completely in the shielded position. The gauge was returned to the licensee's office in Lexington, SC.

"A follow-up inspection of the gauge at the licensee's facility in Lexington, SC will be conducted on June 6, 2017."

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Agreement State Event Number: 52792
Rep Org: ARKANSAS DEPARTMENT OF HEALTH
Licensee: CLEARWATER PAPER CORPORATION
Region: 4
City: MCGEHEE State: AR
County: DESHA
License #: ARK-0530-0312
Agreement: Y
Docket:
NRC Notified By: SUSAN ELLIOT
HQ OPS Officer: VINCE KLCO
Notification Date: 06/07/2017
Notification Time: 12:13 [ET]
Event Date: 06/06/2017
Event Time: 10:00 [CDT]
Last Update Date: 06/07/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
AGREEMENT STATE
Person (Organization):
JESSE ROLLINS (R4DO)
NMSS_EVENTS_NOTIFICA (EMAI)

Event Text

AGREEMENT STATE REPORT - STUCK OPEN SHUTTER ON DENSITY GAUGE

The following information was provided by the State of Arkansas via email:

"During routine shutter checks performed by the licensee on June 6, 2017, the licensee noted that the shutter would not close.

"The gauge is identified as Berthold Model LB 300 L source holder containing 0.189 milliCuries of Cobalt-60.

"The gauge remains operational in the normal use location and the RSO will place additional signs in the area. No maintenance is planned in the area that would require closing of the shutter. The RSO has performed a radiation survey to ensure that radiation exposure is maintained at less than 2 mR/hr in the vicinity of the gauge.

"The licensee has contacted the technical representative who was expected to be at the facility on July 6, 2017, for other maintenance and will examine this gauge.

"In accordance with RH-1502.f.2 (10 CFR 30.50(b)(2)) the malfunctioning shutter is reportable within 24 hours.

"The State of Arkansas is awaiting a written report from the licensee and final disposition information for the gauge. The State's event number is AR-2017-003. "

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Power Reactor Event Number: 52802
Facility: BRAIDWOOD
Region: 3 State: IL
Unit: [1] [2] [ ]
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: RYAN CRAGG
HQ OPS Officer: BETHANY CECERE
Notification Date: 06/12/2017
Notification Time: 13:50 [ET]
Event Date: 06/12/2017
Event Time: 09:14 [CDT]
Last Update Date: 06/14/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(xi) - OFFSITE NOTIFICATION
OTHER UNSPEC REQMNT
Person (Organization):
ANN MARIE STONE (R3DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
1 N Y 100 Power Operation 100 Power Operation
2 N Y 100 Power Operation 100 Power Operation

Event Text

OFFSITE NOTIFICATION FOR DISCHARGE OF CIRCULATING WATER

"On Sunday, June 11, 2017 at 1200 CDT, a Chemistry Technician reported water from the Circulating Water Blowdown (CW B/D) valve building had been pumped onto the ground outside the CW B/D building during a maintenance activity. The sump in the CW B/D building has a sump pump discharge hose that had been routed outside to the ground near the outfall canal rather than to the permitted outfall path. Water sample analysis results confirmed the presence of tritium. The sump pump discharge hose was rerouted to the required outfall on June 11th, 2017 at 1500 CDT. The discharge flow did not leave the site boundary before reaching the permitted discharge pathway.

"In accordance with the Braidwood Station Illinois Environmental Protection Agency (IEPA) Consent Order dated March 11, 2010, the IEPA was notified of the blowdown line release on June 12, 2017 at 0914 CDT; the Illinois Emergency Management Agency (IEMA) was subsequently notified. Local agencies in the Braidwood area will also be notified.

"Follow-up analyses are being performed to determine if additional IEPA or IEMA notifications will be required. The release tank values for other radionuclides (i.e., other than tritium) were interpolated based on tritium values for the release tank, dilution from the CW B/D, and sampled sump tritium values; and determined to be less than Minimum Detectable Activity (MDA).

"Within 4 hours of determination that state and local agencies notification will be made, the NRC Operations Center is required to be notified. There were no public health risks associated with the event. The NRC Resident Inspector was notified. Due to the notification of government agencies, this event is being reported under 10 CFR 50.72(b)(2)(xi)."

* * * UPDATE ON 6/14/17 AT 1650 EDT FROM JOHN LOGAN TO DONG PARK * * *

"The Illinois Environmental Protection Agency (IEPA) and the Illinois Emergency Management Agency (IEMA) were notified on Wednesday, June 14, 2017, at 1206 CDT and 1213 CDT, respectively, of the preliminary results of estimated quantity of curies of tritium release (approximately 0.009 curies of tritium) and the estimated volume of the release (approximately 35,000 gallons). The discharge flow did not leave the site boundary before reaching the permitted discharge pathway. The NRC Resident Inspector was notified of the update to IEPA and IEMA."

Notified R3DO (Stone).

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Power Reactor Event Number: 52803
Facility: HATCH
Region: 2 State: GA
Unit: [ ] [2] [ ]
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: RODGER LOWER
HQ OPS Officer: HOWIE CROUCH
Notification Date: 06/14/2017
Notification Time: 08:42 [ET]
Event Date: 04/17/2017
Event Time: 11:20 [EDT]
Last Update Date: 06/14/2017
Emergency Class: NON EMERGENCY
10 CFR Section:
50.73(a)(1) - INVALID SPECIF SYSTEM ACTUATION
Person (Organization):
OMAR LOPEZ (R2DO)

Unit SCRAM Code RX CRIT Initial PWR Initial RX Mode Current PWR Current RX Mode
2 N Y 100 Power Operation 100 Power Operation

Event Text

60-DAY OPTIONAL TELEPHONIC NOTIFICATION OF INVALID SPECIFIED SYSTEM ACTUATION

"On April 17, 2017 at 1120 EDT, following scheduled maintenance, the Reactor Protection System (RPS) 'A' bus was returned to its normal supply, the RPS 'A' motor generator (MG) set. The RPS MG set had been running loaded for 1 hour when the RPS 'A' bus tripped. Maintenance personnel had connected probes of a grounded oscilloscope to check for proper operation of the MG set, resulting in the RPS 'A' bus trip. The controlling procedure did not contain a caution about using only an ungrounded oscilloscope. The trip of the RPS 'A' MG set resulted in a half scram and an invalid isolation signal causing primary containment isolation valves in multiple systems to isolate.

"This event is reportable per 10 CFR 50.73 (a)(2)(iv)(A) since the containment isolation was not part of a pre-planned sequence and the event resulted in the invalid actuation of general containment isolation valves in more than one system.

"Corrective actions include revising the governing procedure with the proper precaution and limitation to require the use of an ungrounded oscilloscope. A training needs analysis will also be performed to cover the lessons learned from this event.

"The licensee notified the NRC Resident Inspector."

Page Last Reviewed/Updated Thursday, June 15, 2017
Thursday, June 15, 2017