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PROS 2015 Summer Meeting

2015 PROS Meeting will be in Texas.

A NASA tour is planned. You will love the Gulf Coast. Plan your meeting now, and have some fun too.

Read page two. News continues, don't stop on page one.

Columbia Generating Station LER: TS Surveillance Compliance, UHS Spray Pond Level

On August 14, 2014 it was discovered that Columbia Generating Station's (Columbia) method of complying with Technical Specification (TS) Surveillance Requirement (SR) for Ultimate Heat Sink (UHS) spray pond level was Inadequate. The SR requires level In each spray pond to be verified to be greater than or equal to the minimum water level whereas procedures allowed for an arithmetic average of the two ponds to be taken when a single Service Water (SW) pump is in operation which creates a differential between the pond levels. The two spray ponds that make up Columbia's UHS are connected by a siphon line to allow water to be shared between the two ponds. Columbia's original TS did not specify that a minimum water level be checked in each pond and a procedural note was added to clarify compliance with the TS SR during single SW pump operation. When Columbia upgraded the TSs in 1997 the word 'each' was introduced to the TS. Corrective actions include a TS amendment submitted to the NRC on August 22, 2014.


The cause of this event is that although it was recognized in 1997 that Columbia was out of verbatim compliance with TS SR Columbia's licensing document change process in 1997 allowed for changes to the TS SR and TS Bases to be processed separately. This allowed the TS Bases change to be implemented while the TS SR change was never completed or approved by the NRC.

Salem Generating Station - Unit 1 LER: Loss of a Safety Function Resulting from Safety Injection Pump Breaker Failure

On August 27, 2014, the 11 Safety Injection (SI) pump was being tagged out for planned maintenance. At 0243, the 11 SI pump was declared inoperable when its 4 kilovolt (kV) supply breaker was racked out. At 0248, the 12 SI pump failed to start on demand when operators were attempting to fill the 14 SI Accumulator. The unit entered Technical Specification (TS) 3.0.3 for inoperability of two SI pumps. At 0301, the 11 SI pump was realigned, tested and returned to service and the unit exited TS 3.0.3. The apparent cause of the 12 SI pump failure to start was due to a failure of the spring release solenoid in the pump's breaker. 

This report is made in accordance with 10 CFR 50. 73 (a)(2)(v)(D), "Any event or condition that could have prevented the fulfillment of the safety function of structures or systems that are needed·, to: ... (D) Mitigate the consequences of an accident" for inoperability of both SI Pumps. 


At 0711 EDT, Salem Unit 2 entered TSAS [Technical Specification Action Statement] 3.0.3 due to the Salem Unit 1 - 1B Vital instrument bus inverter failing which resulted in a loss of the Unit 1 - 1B Vital instrument bus. The loss of power to the 1B Vital instrument bus resulted in Salem Unit 2 initiating the accident pressurized mode of control room ventilation. All dampers and fans repositioned correctly with the exception of the Unit 1 Control Room Emergency Air Conditioning System (CREACS) intake dampers, 1CAA48, 50, and 51. The 1CAA48 was pinned closed to support Unit 1 - 1A125VDC scheduled maintenance. The 1CAA50 and 51 failed to move to the open position (required for Unit 2 accident pressurized mode) due to the loss of power to the 1B Vital Instrument Bus. With the 1CAA48, 50 and 51 dampers closed, this isolated the Unit 1 CREACS intake in the closed position.


This notification is to report a condition involving higher than allowable through-seat leakage of two redundant feedwater system check valves (28A and 96A). Unit 2 is currently shut down and primary containment is not required to be operable. Therefore, there is currently no safety impact due to this discovered condition. 

This leakage was identified as a result of planned local leak rate testing of the feedwater primary containment isolation valves for the 'A' feedwater line being performed during the current P2R20 refueling outage. At approximately 1100 EDT, Engineering determined that the primary containment penetration pathway leakage through the redundant check valves resulted in a condition where the maximum allowable primary containment leakage rate (La) was exceeded. In accordance with NUREG-1022, Rev. 3, Event Report Guidelines 10 CFR 50.72 and 50.73, Section 3.2.4, this occurrence is an example of a reportable condition.

South Korea Plans Advanced Reactor To Burn Spent Nuclear Fuel

Like the United States, South Korea has a growing, burdensome stockpile of spent nuclear fuel. But Korea plans to do something about it, using technology that has been gathering dust in the U.S. to build a reactor that will recycle spent fuel to produce more electricity and less noxious waste.

To build the Generation IV sodium-fast reactor, South Korea haspartnered with Argonne National Laboratory, whose scientists have been advocating the technology since the 1940s.

Hidden on Campus: Penn State’s Historic Nuclear Reactor

Penn State is home to a vast array of well-known landmarks. There’s Beaver Stadium, the Lion Shrine, Old Main, and the longest continuously running nuclear university reactor in the United States.

Fine, that last one isn’t quite as well known as the others, but our own Nuclear Historic Landmark probably deserves some more attention.


In 1955, President Dwight Eisenhower created the Atoms for Peace program. The program was designed to supply equipment and information about nuclear power to research institutions, hospitals, and schools throughout the world. During this time, the president of the university happened to be Milton Eisenhower, brother to Dwight. The close relationship the school had with the president is cited as one of the many reasons Penn State was chosen as the home to a nuclear reactor.


NRC Agrees to Changes in Kewaunee Nuclear Plant’s Emergency Programs

The Nuclear Regulatory Commission has granted Dominion Energy Kewaunee’s request to alter the emergency preparedness program for the Kewaunee nuclear power plant in Wisconsin to reflect the plant’s decommissioning status.

The changes come in the form of exemptions from certain requirements in NRC’s regulations for operating nuclear power plants that may not be applicable for a plant undergoing decommissioning. Specifically, Kewaunee will no longer be required to maintain offsite radiological emergency preparedness plans or the 10-mile emergency planning zone. The plant will maintain an onsite emergency plan and response capabilities, including the continued notification of local government officials for an emergency declaration. The Kewaunee emergency plan incorporating these exemptions will be reviewed separately by the NRC.

The NRC staff agreed with Dominion’s analyses that the exemptions are warranted because the risk of an offsite radiological release is significantly lower, and the types of possible accidents are significantly fewer, at a nuclear power reactor that has permanently ceased operations and removed fuel from the reactor vessel than at an operating power reactor. The staff proposed granting the exemptions in June. The Commission approved the exemptions in August. The exemption package, including a safety evaluation report, was issued Oct. 27 and is available in the NRC’s ADAMS database under accession number ML14261A223.

China’s Risky Nuclear Renaissance

Nuclear energy: It’s risky stuff. Hence, there is often a heavy degree of government control over it—which makes it a doubly risky investment proposition.

Especially when that government is China’s.

First reactor to come online since Fukushima

BEIJING, Oct. 28 (Xinhuanet) -- Satsuma-sendai, a city in south-west Japan, has become the first

All 48 of the country’s nuclear reactors were gradually taken offline in its aftermath. Nineteen of the city’s 26 assembly members voted in favour of restarting the two-reactor plant. to approve the restart of its nuclear power station since the Fukushima disaster in 2011.

Prime Minister Shinzo Abe’s government is pushing to restart their nuclear reactors, but has said he will defer to local authorities to approve the policy that is still unpopular with many in Japan.


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