Event Notification Report for January 24, 2000
U.S. Nuclear Regulatory Commission Operations Center Event Reports For 01/21/2000 - 01/24/2000 ** EVENT NUMBERS ** 36610 36611 36612 36613 36614 36615 36616 36617 +------------------------------------------------------------------------------+ |Power Reactor |Event Number: 36610 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | FACILITY: POINT BEACH REGION: 3 |NOTIFICATION DATE: 01/21/2000| | UNIT: [1] [] [] STATE: WI |NOTIFICATION TIME: 04:21[EST]| | RXTYPE: [1] W-2-LP,[2] W-2-LP |EVENT DATE: 01/21/2000| +------------------------------------------------+EVENT TIME: 02:39[CST]| | NRC NOTIFIED BY: JOHN SELL |LAST UPDATE DATE: 01/21/2000| | HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+PERSON ORGANIZATION | |EMERGENCY CLASS: N/A |DAVID HILLS R3 | |10 CFR SECTION: | | |ASHU 50.72(b)(1)(i)(A) PLANT S/D REQD BY TS | | |ARPS 50.72(b)(2)(ii) RPS ACTUATION | | | | | | | | +-----+----------+-------+--------+-----------------+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ |1 M/R Y 40 Power Operation |0 Hot Standby | | | | | | | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNIT 1 MANUALLY TRIPPED FROM 40% POWER DUE TO A DECREASING FOREBAY LEVEL | | | | "UNIT 1 WAS MANUALLY TRIPPED FROM 40% POWER AFTER AN ANTICIPATORY POWER | | REDUCTION AT 0239CST DUE TO DECREASING LEVEL IN THE CIRC. WATER INLET | | FOREBAY. DECREASING LEVEL WAS APPARENTLY DUE TO ICING OF THE INTAKE | | STRUCTURE. UNIT 1 CIRC. WATER SYSTEM HAS BEEN SECURED AND FOREBAY LEVEL HAS | | INCREASED. THE UNIT 1 CIRC. WATER SYSTEM WAS SECURED TO MAINTAIN | | OPERABILITY OF THE SERVICE WATER SYSTEM. UNIT 2 REMAINS AT 100% POWER AND | | IS STABLE." | | | | FOREBAY LEVEL HAD DECREASED TO -11 FT FROM THE NORMAL OPERATING -8 FT. THE | | -11 FT CORRESPONDS TO THE MINIMUM DESIGN LIMIT FOR THE SERVICE WATER SYSTEM. | | CURRENTLY, LEVEL IS -6 FT 4 INCHES. STEAM GENERATORS USING THE ATMOSPHERIC | | DUMPS ARE PROVIDING THE HEAT SINK FOR DECAY HEAT REMOVAL SINCE THE CONDENSER | | IS NOT IN SERVICE. ALL CONTROL RODS FULLY INSERTED FOLLOWING THE MANUAL | | TRIP. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | | | | *** UPDATE ON 1/21/00 @ 1339 BY KRAUSE TO GOULD *** | | | | THE LICENSEE UPDATED THIS EVENT BY ALSO CLASSIFYING IT AS A RPS ACTUATION | | DUE TO THE MANUAL REACTOR TRIP. | | | | THE NRC RESIDENT INSPECTOR WILL BE NOTIFIED. | | | | THE REG 3 RDO(HILLS) WAS NOTIFIED. | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ |General Information or Other |Event Number: 36611 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | REP ORG: WA DIVISION OF RADIATION PROTECTION |NOTIFICATION DATE: 01/21/2000| |LICENSEE: FEDERAL EXPRESS |NOTIFICATION TIME: 07:17[EST]| | CITY: SEATTLE REGION: 4 |EVENT DATE: 01/14/2000| | COUNTY: STATE: WA |EVENT TIME: [PST]| |LICENSE#: AGREEMENT: Y |LAST UPDATE DATE: 01/21/2000| | DOCKET: |+----------------------------+ | |PERSON ORGANIZATION | | |LINDA SMITH R4 | | |WAYNE HODGES NMSS | +------------------------------------------------+ | | NRC NOTIFIED BY: TERRY FRAZEE (via e-mail) | | | HQ OPS OFFICER: STEVE SANDIN | | +------------------------------------------------+ | |EMERGENCY CLASS: N/A | | |10 CFR SECTION: | | |NAGR AGREEMENT STATE | | | | | | | | | | | | | | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AGREEMENT STATE REPORT | | | | This is notification of an event in Washington state as investigated by the | | WA Department of Health, Division of Radiation Protection. | | | | STATUS: new | | | | Reported By: Federal Express | | City and state: Seattle, WA | | License number: Not Applicable | | Type of license: General license for Commercial Carrier | | | | Date of event: January 14, 2000 | | Location of Event: Seattle-Tacoma International Airport | | | | ABSTRACT: During off-loading a plane early in the morning of January 14, | | 2000, a two pound package containing 52 microcuries of I-125 labeled human | | insulin fell off the ramp loader and came to rest un-noticed under the | | extended ramp. The ramp was lowered after the unloading of the plane, | | crushing the package. The crushed package was discovered later that day and | | Federal Express procedures were followed. The package was noted to fall | | apart as it was lowered into the barrel overpack. The state Division of | | Radiation Protection was notified promptly via 206-NUCLEAR (the state's | | radiation emergency line). Staff from the Division responded and determined | | that neither the individual who had overpacked the package nor the ramp | | loader were contaminated. The barrel overpack was opened long enough to | | confirm the presence of removable contamination (approximately 2000 cpm per | | 100 sq. cm. using low energy gamma scintillation probe). Direct survey | | reading inside of the barrel showed 30,000 to 50,000 cpm. No contamination | | was found on the outside of the barrel or the barrel's storage location. | | | | The package was a Type A container labeled Yellow II with a transport index | | of 0.1 (UN2982, radioactive material, n.o.s.) shipped from Amersham | | Pharmacia Biotech to a Seattle research lab licensed by the state. | | | | What is the notification or reporting criteria involved? Damaged package. | | | | Activity and isotope(s) involved: 52 microcuries of I-125. | | | | Overexposures? No individuals were exposed or contaminated as a result of | | this event. | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ |Power Reactor |Event Number: 36612 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | FACILITY: OYSTER CREEK REGION: 1 |NOTIFICATION DATE: 01/21/2000| | UNIT: [1] [] [] STATE: NJ |NOTIFICATION TIME: 11:17[EST]| | RXTYPE: [1] GE-2 |EVENT DATE: 01/21/2000| +------------------------------------------------+EVENT TIME: 10:48[EST]| | NRC NOTIFIED BY: GLENN HUTTON |LAST UPDATE DATE: 01/21/2000| | HQ OPS OFFICER: FANGIE JONES +-----------------------------+ +------------------------------------------------+PERSON ORGANIZATION | |EMERGENCY CLASS: N/A |FELICIA HINSON R1 | |10 CFR SECTION: | | |ARPS 50.72(b)(2)(ii) RPS ACTUATION | | | | | | | | | | | +-----+----------+-------+--------+-----------------+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ |1 M/R Y 65 Power Operation |0 Hot Shutdown | | | | | | | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MANUAL REACTOR SCRAM PER PROCEDURE FOLLOWING TRIP OF ALL RECIRCULATION | | PUMPS | | | | During the performance of a surveillance, with a half scram signal inserted, | | a spurious trip signal from the other system initiated a trip of all the | | reactor coolant system recirculation pumps. The operators manually scrammed | | the reactor per procedure, all rods fully inserted. Heat removal is via the | | main condenser with main feedwater feeding the reactor. All systems | | functioned as designed and the plant is proceeding to cold shutdown. A trip | | review will be performed by the licensee. | | | | The licensee notified the NRC Resident Inspector. | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ |Power Reactor |Event Number: 36613 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | FACILITY: OYSTER CREEK REGION: 1 |NOTIFICATION DATE: 01/21/2000| | UNIT: [1] [] [] STATE: NJ |NOTIFICATION TIME: 14:26[EST]| | RXTYPE: [1] GE-2 |EVENT DATE: 01/21/2000| +------------------------------------------------+EVENT TIME: 12:00[EST]| | NRC NOTIFIED BY: BROWNE |LAST UPDATE DATE: 01/21/2000| | HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+PERSON ORGANIZATION | |EMERGENCY CLASS: N/A |FELICIA HINSON R1 | |10 CFR SECTION: | | |APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION | | | | | | | | | | | +-----+----------+-------+--------+-----------------+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ |1 N N 0 Hot Shutdown |0 Hot Shutdown | | | | | | | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE NOTIFIED THE NEW JERSEY DEPARTMENT OF ENVIRONMENTAL PROTECTION | | OF A FISH KILL. | | | | THERE WAS A FISH KILL IN THE DISCHARGE CANAL OF MORE THAN 100 FISH (SEVERAL | | SPECIES) DUE TO COLD STRESS. THIS OCCURRED FOLLOWING THE REACTOR SCRAM WHEN | | COOLER WATER WAS DISCHARGED TO THE CANAL DECREASING ITS TEMPERATURE. | | | | THE RESIDENT INSPECTOR WILL BE NOTIFIED. | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ |Power Reactor |Event Number: 36614 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | FACILITY: BEAVER VALLEY REGION: 1 |NOTIFICATION DATE: 01/21/2000| | UNIT: [1] [2] [] STATE: PA |NOTIFICATION TIME: 20:05[EST]| | RXTYPE: [1] W-3-LP,[2] W-3-LP |EVENT DATE: 01/21/2000| +------------------------------------------------+EVENT TIME: 19:45[EST]| | NRC NOTIFIED BY: THOMAS |LAST UPDATE DATE: 01/21/2000| | HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+PERSON ORGANIZATION | |EMERGENCY CLASS: N/A |CHRIS CAHILL R1 | |10 CFR SECTION: | | |AUNA 50.72(b)(1)(ii)(A) UNANALYZED COND OP | | | | | | | | | | | +-----+----------+-------+--------+-----------------+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ |1 N Y 100 Power Operation |100 Power Operation | |2 N Y 100 Power Operation |100 Power Operation | | | | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | INSUFFICIENT GUIDANCE FOR ENSURING THAT A SAFETY RELATED SYSTEM WAS | | OPERATING DURING A LOCA | | | | During the evaluation of a separate Condition Report concerning a Technical | | Specification 3.0.3 entry involving the Beaver Valley Power Station (BVPS) | | Unit 1 Supplemental Leak Collection & Release System (SLCRS), it was | | discovered that the operators did not have sufficient guidance for ensuring | | that this safety related system was operating following an accident. | | | | BVPS Units 1 and 2 Technical Specifications 3/4.7.8 Bases states "System | | operation was assumed in that portion of the design basis accident LOCA | | analysis which addressed ESF leakage following the LOCA Based on the | | results of the analyses, the SLCRS must be OPERABLE to ensure that ESF | | leakage following the postulated DBA LOCA will not exceed 10CFR 100 | | limits." ESF leakage is a concern during a LOCA following a Safety | | Injection Transfer to Recirculation. | | | | The BVPS Unit 1 and 2 operators did not have sufficient guidance to ensure | | that a SLCRS fan is operating during a LOCA after Transfer to Recirculation | | occurs. Thus, the SLCRS may not operate as assumed and credited in LOCA | | safety analyses. SLCRS also provides cooling air flow to the emergency core | | cooling pumps motors. The need for SLCRS for maintaining the qualification | | of emergency core cooling pumps motors is proportional to the ambient | | outdoor air temperatures. Current guidance does not ensure SLCRS would be | | available in all conditions where SLCRS flow is required to maintain the | | qualification of the emergency core cooling pump motors. | | | | This condition is an unanalyzed condition and is reportable pursuant to | | 10CFR50.72(b)(1)(ii). | | | | Verbal guidance has been provided to the BVPS Unit 1 and 2 operating crews | | to ensure a SLCRS fan is running in the event of a reactor trip or safety | | injection. This guidance is currently being formalized. | | | | The NRC Resident Inspector was notified. | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ |Power Reactor |Event Number: 36615 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 01/21/2000| | UNIT: [] [] [3] STATE: CT |NOTIFICATION TIME: 23:33[EST]| | RXTYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 01/21/2000| +------------------------------------------------+EVENT TIME: 23:13[EST]| | NRC NOTIFIED BY: JAMES V. GROGAN |LAST UPDATE DATE: 01/21/2000| | HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+PERSON ORGANIZATION | |EMERGENCY CLASS: N/A |CHRIS CAHILL R1 | |10 CFR SECTION: | | |AOUT 50.72(b)(1)(ii)(B) OUTSIDE DESIGN BASIS | | | | | | | | | | | +-----+----------+-------+--------+-----------------+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | | |3 N Y 100 Power Operation |100 Power Operation | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | ULTIMATE HEAT SINK (UHS) BELOW MINIMUM DESIGN TEMPERATURE LIMIT OF 33 | | DEGREES F (CONCERN IS SERVICE WATER TEMPERATURE). | | | | Below is the Basis for Initial Reasonable Expectation of Continued | | Operability performed by Engineering: | | | | CCI is Closed Cooling for Safety Injection, CCE is Closed Cooling for | | Charging, SW is Service Water, and Hx is Heat Exchanger | | | | "The concerns with low UHS temperature are pipe stress calculations and | | possible freezing of stagnant loops such as CCI and CCE. Other portions of | | the SW system are not vulnerable to small changes in UHS temp due to | | constant flows and large heat sinks. Additionally, the 33 degree F limit is | | the design basis of the plant per the FSAR and therefore is reportable if | | exceeded. | | | | "CCL and CCE freezing: | | | | "A review of the thermodynamic characteristics of the CCI and CCE heat | | exchangers, assuming UHS of 31 degrees F, shows that the temperature | | gradient of the process fluid, due to the high conductivity of the copper | | nickel pipe and room temperatures, results in CCI and CCE bulk fluid | | temperatures remaining above freezing for an extended period of time, | | although the bulk temperature of the shell side of the CCI heat exchangers | | is only 32.5 degrees F. To assure operability of the SI pumps, the CCI | | system should be started at a SWP temperature of 33 degrees F decreasing to | | move the water through the system. The historical UHS temperature dips | | below 33 degrees F have been for a short duration of hours followed by | | longer warming periods. Design calculations show that CCI/SIH operate | | properly with the entire bulk temperature at 32 degrees F. This is | | conservative as the majority of the CCI system will remain at ambient room | | temperature in the standby mode. Once operating, there is additional heat | | input from the SIH pump. Therefore, there is no limit to UHS temperature | | which would render CCI/SIH inoperable even over several hours. | | | | "A similar argument applies for the CCE/CHS system. The temperature | | gradient and bulk temperature characteristics are identical. Additionally, | | the CCE system utilizes a temperature control valve to maintain proper | | temperatures. The failed position of this valve (LOP) is to maximum flow | | through the SW Hx and has a position limiter designed for proper Charging | | lube oil temperature with a 33 degrees F UHS. The supporting calculation | | demonstrates that a 41.9 degrees F CCE inlet temperature at the lube oil | | cooler results in a 55 degrees F lube oil temperature (minimum required | | temperature for charging pump operability). If a service water temperature | | of 30 degrees F is used in the LMTD equation for the CCE HX, and the delta-T | | on both the SW & CCE sides are assumed to remain unchanged, the calculated | | CCE inlet temperature at the lube oil cooler is 42.2 degrees F, which is > | | 41.9 degrees F needed for the 55 degrees F lube oil temperature. | | | | "To prevent potential freezing of the shell side fluid in the CCI heal | | exchangers and assure the Operability of the Safety Injection pumps, the CCL | | pumps should be started at a SWP temperature of 33 degrees F decreasing. | | | | "Piping Stress: | | | | "The Service Water System piping, supports and equipment have been analyzed | | to meet Code stress limits at a minimum temperature of 33 degrees F as | | described in OD MP3-213-96. Lower temperatures will have no affect on the | | qualification status of the piping analysis since thermal expansion induced | | pipe stress is secondary, and is not evaluated under GL 91-18 Operability | | rules. | | | | "Increases in loads for pipe supports, equipment nozzles and equipment | | anchorage for temperatures below 33 degrees F are judged to be negligible | | and also have no affect on the operability of these components. ERC | | MP3-DE-96-059 revision 1 transmitted Technical Report TR-89014-1, revision | | 2, which evaluated low temperature piping at Millstone Unit 3. This report | | concludes that systems where the maximum operating temperature does not | | exceed 200 degrees F, and the temperature range does not exceed 200 degrees | | F, satisfy ASME Code requirements for thermal expansion loads. The Service | | Water maximum temperature range is well below 200 degrees F. | | | | "Therefore, Service Water temperatures below 33 degrees F (to the freezing | | point of sea water 27.5 degrees F) will have no effect on the operability of | | Service Water piping, supports, equipment nozzles, and equipment anchorage, | | from a stress standpoint. No compensatory action are required. | | | | "An OD has been prepared to support continued operation of MP3 with a | | Service Water temperature of 31 degrees F. This OD is stored on the MP3 | | server at K:\DeptData\MacDeb\UHSOD. Scoping calculations to support this OD | | have been completed and reviewed. This OD must be reviewed and PORC approved | | as required by the SM, if SWP temperatures lower than 33 degrees F are | | recorded." | | | | When the tide goes out the water temperature of the Ultimate Heat Sink | | temperature decreases and when the tide comes back in the temperature of the | | Ultimate Heat Sink increases. At the present time the tide is going out and | | the water temperature is 32.7 degrees F. In a couple of hours the tide will | | start coming back in and the water temperature of the Ultimate Heat sink | | should increase to above 33 degrees F (37 to 38 degrees F). | | | | The licensee notified State and Local Counties of this event. | | | | The NRC Resident Inspector was notified of this event by the licensee. | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ |Power Reactor |Event Number: 36616 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | FACILITY: RIVER BEND REGION: 4 |NOTIFICATION DATE: 01/22/2000| | UNIT: [1] [] [] STATE: LA |NOTIFICATION TIME: 05:55[EST]| | RXTYPE: [1] GE-6 |EVENT DATE: 01/22/2000| +------------------------------------------------+EVENT TIME: 03:20[CST]| | NRC NOTIFIED BY: GEORGE D TURNER Jr. |LAST UPDATE DATE: 01/22/2000| | HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+PERSON ORGANIZATION | |EMERGENCY CLASS: N/A |LINDA SMITH R4 | |10 CFR SECTION: | | |AESF 50.72(b)(2)(ii) ESF ACTUATION | | | | | | | | | | | +-----+----------+-------+--------+-----------------+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ |1 N Y 31 Power Operation |31 Power Operation | | | | | | | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | ESF ACTUATION OCCURRED WHEN REACTOR CORE ISOLATION COOLING (RCIC) INBOARD | | STEAM SUPPLY VALVE CLOSED DURING TESTING. | | | | During the performance of routine surveillance testing of RCIC | | (STP-207-4538, "RCIC Isolation -RCIC Steam Supply Pressure Low Channel | | Functional Test"), an isolation of the inboard steam supply valve | | (E51-MOVF064) and the RCIC trip throttle valve (E51-C002) occurred. | | | | The Instrument and Controls Technician performing the test apparently | | misread step 7.1.3 and "N/A'd" the next step (7.1.4). During the | | performance of subsequent steps, the isolation occurred because the | | isolation signal input from E31-N685A was not disabled. | | | | The isolation signal was reset, RCIC was restored to standby in accordance | | with plant procedures. | | | | All Emergency Core Cooling Systems remained operable during the time period | | RCIC was isolated. | | | | The NRC Resident Inspector was notified of this event by the licensee. | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ |Fuel Cycle Facility |Event Number: 36617 | +------------------------------------------------------------------------------+ +------------------------------------------------------------------------------+ | FACILITY: PORTSMOUTH GASEOUS DIFFUSION PLANT |NOTIFICATION DATE: 01/22/2000| | RXTYPE: URANIUM ENRICHMENT FACILITY |NOTIFICATION TIME: 16:58[EST]| | COMMENTS: 2 DEMOCRACY CENTER |EVENT DATE: 01/22/2000| | 6903 ROCKLEDGE DRIVE |EVENT TIME: 13:00[EST]| | BETHESDA, MD 20817 (301)564-3200 |LAST UPDATE DATE: 01/22/2000| | CITY: PIKETON REGION: 3 +-----------------------------+ | COUNTY: PIKE STATE: OH |PERSON ORGANIZATION | |LICENSE#: GDP-2 AGREEMENT: N |DAVID HILLS R3 | | DOCKET: 0707002 |WAYNE HODGES NMSS | +------------------------------------------------+JOSEPH GIITTER IRO | | NRC NOTIFIED BY: SPAETH | | | HQ OPS OFFICER: CHAUNCEY GOULD | | +------------------------------------------------+ | |EMERGENCY CLASS: N/A | | |10 CFR SECTION: | | |NBNL RESPONSE-BULLETIN | | | | | | | | | | | | | | +------------------------------------------------------------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | FOUR HOUR 91-01 BULLETIN - NO NCS CONTROLS IN PLACE FOR A FISSILE MATERIAL | | OPERATION | | | | THE SHIFT SUPERINTENDENT'S OFFICE WAS NOTIFIED BY THE NUCLEAR CRITICALITY | | SAFETY STAFF THAT THEY HAD A FISSILE MATERIAL OPERATION FOR WHICH THERE WAS | | NO NUCLEAR CRITICALITY SAFETY APPROVAL IN PLACE. THEY HAD A UF6 CYLINDER | | STORAGE AREA IN THE X-344A THAT HAD PREVIOUSLY BEEN MARKED AS A DOE | | MATERIALS STORAGE AREA (DMSA). IN REVIEW OF THE DMSA, THEY DISCOVERED THAT | | IT WAS NOT LISTED IN THE USEC/DOE LEASE AGREEMENT AS A DMSA. SINCE NO DMSA | | WAS IDENTIFIED, USEC HAS THE RESPONSIBILITY FOR THE AREA INCLUDING | | RESPONSIBILITY FOR NUCLEAR CRITICALITY SAFETY COVERAGE. THE AREA CONTAINED | | MULTIPLE SMALL UF6 CYLINDERS GROUPED TOGETHER WHICH CONTAINED GREATER THAN | | 15 GRAMS OF U-235 AT MORE THAN 1% ENRICHMENT. THEREFORE, THE STORAGE AREA | | IS CONSIDERED TO BE A FISSILE MATERIAL OPERATION WITH NO NCSA IN PLACE TO | | ANALYZE THE CONDITIONS REQUIRED TO MAINTAIN NCS SAFETY. | | | | THIS AREA WAS THOUGHT TO BE REGULATED BY DOE, BUT IT WAS LATER DETERMINED TO | | BE USEC'S RESPONSIBILITY AND USEC SHOULD HAVE HAD THE NCS INPLACE. | | | | THEY ARE NOT MOVING THE CYLINDERS, BUT THEY WILL BOUNDARY THE AREA OFF AND | | DEVELOP THEIR NCS CONTROLS. | | | | THE NRC RESIDENT INSPECTOR WAS NOTIFIED AND THE DOE REPRESENTATIVE WILL BE | | NOTIFIED. | +------------------------------------------------------------------------------+
Page Last Reviewed/Updated Wednesday, March 24, 2021
Page Last Reviewed/Updated Wednesday, March 24, 2021