U.S. Nuclear Regulatory Commission Operations Center Event Reports For 11/24/97 - 11/25/97 ** EVENT NUMBERS ** 33305 33306 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33305 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HADDAM NECK REGION: 1 |NOTIFICATION DATE: 11/24/97 | |UNIT: [1] [ ] [ ] STATE: CT |NOTIFICATION TIME: 16:51 [ET]| |RX TYPE: [1] W-4-LP |EVENT DATE: 11/24/97 | +------------------------------------------------+EVENT TIME: 16:10[EST]| |NRC NOTIFIED BY: LAURA RYAN |LAST UPDATE DATE: 11/24/97 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JENNY JOHANSEN RDO | |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 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | OFFSITE NOTIFICATION - THREE CONTAMINATED CONCRETE BLOCKS RETURNED TO SITE | | | | THE LICENSEE NOTIFIED THE CONNECTICUT DEPARTMENT OF ENVIRONMENTAL | | PROTECTION THAT 3 CONCRETE BLOCKS RELEASED FROM THE SITE FOR USE IN AN | | EMPLOYEE'S HOME PROJECT WERE FOUND TO BE SLIGHTLY CONTAMINATED. THE BLOCKS | | WERE SURPLUS CONSTRUCTION MATERIAL THAT HAD BEEN MADE AVAILABLE TO | | EMPLOYEES IN THE LATE 1970's AND HAD THE POTENTIAL TO CAUSE AN EXPOSURE | | RATE OF APPROXIMATELY 1 mR/YR. THE LICENSEE PLANS TO MAKE A PRESS RELEASE | | LATER TODAY (11/24/97). | | | | THE NRC RESIDENT INSPECTOR WAS NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |FUEL CYCLE FACILITY | |EVENT NUMBER: 33306 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PADUCAH GASEOUS DIFFUSION PLANT |NOTIFICATION DATE: 11/24/97 | | RXTYPE: URANIUM ENRICHMENT FACILITY |NOTIFICATION TIME: 22:02 [ET]| |COMMENTS: 2 DEMOCRACY CENTER |EVENT DATE: 11/24/97 | | 6903 ROCKLEDGE DRIVE |EVENT TIME: 16:30[CST]| | BETHESDA, MD 20817 (301)564-3200 |LAST UPDATE DATE: 11/24/97 | | CITY: PADUCAH REGION: 3 +-----------------------------+ | COUNTY: McCRACKEN STATE: KY |PERSON ORGANIZATION| |LICENSE#: GDP-1 AGREEMENT: Y |BRUCE BURGESS RDO | | DOCKET: 0707001 |JOE HOLONICH EO | +------------------------------------------------+JOE GIITTER IRD | |NRC NOTIFIED BY: W.F. CAGE | | |HQ OPS OFFICER: DOUG WEAVER | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NBNL RESPONSE-BULLETIN | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | 4-HOUR BULLETIN 91-01 REPORT - ANNUAL SURVEILLANCE NOT PERFORMED | | SATISFACTORILY | | | | ON 11/24/97, OPERATIONS WAS PREPARING TO PERFORM AN ANNUAL SURVEILLANCE OF | | THE VENTILATION DUCT ON THE C-400 SPRAY BOTH. DURING THESE PREPARATIONS IT | | WAS DISCOVERED THAT THE PREVIOUS SURVEILLANCE (A NONDESTRUCTIVE EXAMINATION | | PERFORMED ON 12/17/96) DID NOT CONCLUSIVELY DEMONSTRATE THAT URANIUM | | DEPOSITION WITHIN THE DUCT WORK WAS BELOW A SAFE MASS . | | | | ON 7/31/97, AN UPDATED NCSA FOR THE SPRAY BOOTH OPERATION WAS IMPLEMENTED. | | THE UPDATED NCSA CONTAINED THE SAME NCS REQUIREMENT RELATED TO THE ANNUAL | | SURVEILLANCE. HOWEVER, THE UPDATED NCSA REQUIREMENT STATED A 100 POUND | | SAFE MASS LIMIT WHICH WAS DEEMED TO BE ACCEPTABLE FOR URANIUM DEPOSITION | | WITHIN THE DUCT WORK. THIS MASS LIMIT WAS IN PLACE IN THE PREVIOUS NCS | | EVALUATION, BUT WAS NOT EXPLICITLY STATE WITHIN THE NCSA. | | | | THE 12/17/96 SURVEILLANCE CONSISTED OF A QUALITATIVE NDA SCAN OF THE DUCT | | WORK VERIFYING THE PRESENCE OF NO SIGNIFICANT LOCALIZED DEPOSITS. NCS | | PERSONNEL INTERPRETED THE RESULTS OF THE NDA SCAN AND DETERMINED THAT THE | | TOTAL URANIUM MASS WITHIN THE DUCT SYSTEM WAS LESS THAN THE SAFE MASS (100 | | POUNDS FOR 2.75 WT%). DISCUSSIONS WITH NDA PERSONNEL ON 11/24/97, | | INDICATED THAT THE DECEMBER 1996 SCAN WAS NOT A QUANTITATIVE SCAN OF THE | | ENTIRE LENGTH OF THE DUCT WORK. | | | | SPRAY BOOTH OPERATIONS HAVE BEEN SUSPENDED UNTIL AN ADEQUATE SURVEILLANCE | | OF URANIUM DEPOSITION WITHIN THE DUCT SYSTEM CAN BE PERFORMED. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN NOTIFIED. | +------------------------------------------------------------------------------+