Event Notification Report for September 29, 2016

AGREEMENT STATE REPORT - UNPLANNED CONTAMINATION EVENT

The following was received by fax from the Tennessee Division of Radiological Health:

"While emptying a 55 gallon drum of lead for reuse into a B-12 box, unknown and unsuspected contamination levels in bottom of drum resulted in a contamination of the area to max levels of 2,000,000 dpm/100 cm2 beta. Contamination levels in drum determined to be 2,000,000 dpm/100 cm2 max post event. Pre job surveys identified no elevated contamination levels in top of drum. Isotope and activity are unknown at this time. Isotope is a weak pure beta emitter. Analysis is underway for isotopic determination. [Three] 3 persons with skin contamination were deconned. Bioassays are underway for internal dose assessment. Area is being recovered, however, not within 24 hours resulting in reporting of event. Dose assessments are forthcoming."

State Event Report ID No.: TN-16-138

TSC VENTILATION INDICATION ISSUE IDENTIFIED FOLLOWING SURVEILLANCE TESTING

"On 9/29/2016 at 1700 [EDT] the MCR [Main Control Room] was notified of a potential Technical Support Center [TSC] emergency ventilation indication issue following surveillance testing. At 2350 troubleshooting revealed a blown control power fuse which affected functionality of TSC HVAC emergency mode. The system was restored to operable as of 0043 on 9/30/16.

"If an emergency had been declared and TSC activation was required, the TSC would have been staffed and activated unless the TSC became uninhabitable due to ambient temperatures, radiological or other conditions. The Station Emergency Director would assess habitability in accordance with station procedures. If TSC relocation becomes necessary, then personnel would be directed as required until such time that the TSC emergency ventilation system was returned to service."

The licensee informed the NRC Resident Inspector.

UNISOLABLE LEAK ON DECAY HEAT REMOVAL PIPING DUE TO WELD FAILURE ON A 1" COMMON PIPE

"At 2100 CDT on 09/29/16, while in Mode 6, both trains of Decay Heat (Residual Heat Removal) were declared inoperable due to a cracked weld on a 1" common pipe. The leak developed in a USAS B31.7, Class1 pipe at a weld upstream of pressure indication isolation valve DH-1037. The leak is not isolable from the common 8-inch Decay Heat piping and encompasses approximately 1/3 [one third] of the pipe circumference.

"At the time of discovery, the unit was in Lowered Inventory with both Loops of Decay Heat in service. Subsequently, one train of Decay Heat has been secured to reduce the likelihood of crack propagation. One Train of Decay Heat remains in service providing the function of removing Decay Heat and the other train is readily available. The leakage impacts redundant equipment required to fulfill a safety function. In the current condition, both trains are required to be operable to meet Technical Specification LCO 3.9.5, Decay Heat Removal (DHR) and Coolant Circulation-Low water Level.

"This condition is reportable per 10 CFR 50.72(b)(3)(v)(B) for any event or condition that results in a loss of Safety Function associated with the Decay Heat System (Residual Heat Removal System).

"The licensee has notified the NRC Resident Inspector."

The leak is approximately 0.25 gallons per minute and pipe pressure is 140 psi. Compensatory measures are in place and include an individual posted to watch the pipe in case plugging is necessary. Repairs to the pipe will be completed once pipe is able to be drained.

FITNESS FOR DUTY REPORT - LICENSED OPERATOR CONFIRMED POSITIVE FOR ALCOHOL

A licensed operator had a confirmed positive for alcohol on a random fitness for duty test. The employee's access to the plant has been terminated.

The licensee has informed the NRC Resident Inspector.

PART 21 REPORT - WELDS ON MODULAR FRAME ASSEMBLIES DETERMINED TO BE DEFECTIVE

The following is the summary of information received from CB&I AREVA MOX Services, Savannah River Site, via fax:

MOX Services has determined that some welds on modular frame assemblies supplied by Shaw SSS Fabricators in Addis, LA do not comply with procurement documents and require repair. It is unknown by MOX Services if Shaw SSS Fabricators supplied any assemblies to other facilities.

Individual informing the Commission was David Del Vecchio, President and Project Manager, CB&I AREVA MOX Services, Savannah River Site, P.O. Box 7097, Aiken, SC 29804-7097.

PACKAGE RECEIVED WITH REMOVABLE SURFACE CONTAMINATION EXCEEDING APPLICABLE LIMITS

"Consistent with paragraphs 111.1 and V.1 of the NRC Confirmatory Order of December 14, 2017 in EA-17-090, GNF-A makes the following report.

"GNF-A [Global Nuclear Fuels - Americas] is making this report to the NRC Operations Center, pursuant to 10 CFR 20.1906(d)(1) to state that the NRC has concluded GNF-A received a package on September 29, 2016, which had removable radioactive surface contamination on its external surfaces that exceeded the applicable limits set forth in 10 CFR 71.87(i).

"This report is solely for the purposes of reaching resolution from an October 25, 2017 alternative dispute resolution because GNF-A maintains that the removable radioactive surface contamination on the external surfaces of the package (an open metal dumpster) and the removable surface contamination on scrap pipes contained in the dumpster did not exceed the applicable limits set forth in 10 CFR 71.87(i).

"Safety Significance of Event: At no time was an unsafe condition.

"Status of Corrective Action: Issue resolved during Alternative Dispute Resolution."

The licensee will inform the NRC Region II Project Manager, State of North Carolina and New Hanover County Emergency Management.