ENS 44871
ENS Event | |
|---|---|
16:30 Feb 23, 2009 | |
| Title | Airborne Contamination Over the Limit in the Feed Materials Building |
| Event Description | {{#Wiki_filter:An unplanned contamination event occurred on February 22, 2009. This is a reportable event in accordance with 10 CFR 40.60 paragraph (b)(1) based on an unplanned event that results in additional radiological control being required for more than 24 hours. The 24 hour period ended at 10:30 on February 23, 2009. The additional control imposed was wearing a half face respirator in the 6th floor of the Feed Materials Building. The Feed Materials Building converts uranium ore concentrates into uranium hexafluoride. Air samples from the 6th floor were analyzed and the airborne radioactivity average was approximately 6.73 e-11 �Ci/ml. The airborne radioactivity exceeded the MTW [Honeywell Metropolis Facility] action level of 30% of a DAC (5.00 e-11 �Ci/ml). One DAC is 1.7e-10 �Ci/ml. Uranium tetrafluoride (green salt) was the material that was airborne on the 6th floor. A release point could not be determined. The air samples indicate that the air emission occurred on the northwest side of the building likely to be from a release of material from the green salt elevator and conveyor system.
See similar event number 44857 on 2/17/09. }}[[Event description::Description::{{#Regex_clear:An unplanned contamination event occurred on February 22, 2009. This is a reportable event in accordance with 10 CFR 40.60 paragraph (b)(1) based on an unplanned event that results in additional radiological control being required for more than 24 hours. The 24 hour period ended at 10:30 on February 23, 2009. The additional control imposed was wearing a half face respirator in the 6th floor of the Feed Materials Building. The Feed Materials Building converts uranium ore concentrates into uranium hexafluoride. Air samples from the 6th floor were analyzed and the airborne radioactivity average was approximately 6.73 e-11 �Ci/ml. The airborne radioactivity exceeded the MTW [Honeywell Metropolis Facility] action level of 30% of a DAC (5.00 e-11 �Ci/ml). One DAC is 1.7e-10 �Ci/ml. Uranium tetrafluoride (green salt) was the material that was airborne on the 6th floor. A release point could not be determined. The air samples indicate that the air emission occurred on the northwest side of the building likely to be from a release of material from the green salt elevator and conveyor system. See similar event number 44857 on 2/17/09. }}| ]] |
| Where | |
|---|---|
| Honeywell International, Inc. Metropolis, Illinois (NRC Region 2) | |
| License number: | SUB-526 |
| Reporting | |
| 10 CFR 40.60(b)(1) | |
| Time - Person (Reporting Time:+1.72 h0.0717 days <br />0.0102 weeks <br />0.00236 months <br />) | |
| Opened: | Bob Stokes 18:13 Feb 23, 2009 |
| NRC Officer: | Pete Snyder |
| Last Updated: | Feb 23, 2009 |
| 44871 - NRC Website | |
Honeywell International, Inc. with 10 CFR 40.60(b)(1) | |
WEEKMONTHYEARENS 451952009-07-11T01:00:00011 July 2009 01:00:00
[Table view]10 CFR 40.60(b)(1) Unplanned Contamination Event Requiring Additional Radiological Controls (Respirators) for More than 24 Hours ENS 451632009-06-24T15:45:00024 June 2009 15:45:00 10 CFR 40.60(b)(1) Access Restriction Due to Unplanned Contamination ENS 450582009-05-11T16:30:00011 May 2009 16:30:00 10 CFR 40.60(b)(1) Multiple Failures to Meet 24 Hour Reporting Criteria ENS 449392009-03-24T18:30:00024 March 2009 18:30:00 10 CFR 40.60(b)(1) Building Contaminated During Maintenance ENS 448712009-02-23T16:30:00023 February 2009 16:30:00 10 CFR 40.60(b)(1) Airborne Contamination Over the Limit in the Feed Materials Building ENS 448572009-02-16T16:30:00016 February 2009 16:30:00 10 CFR 40.60(b)(1) 24-Hour Report Involving an Unplanned Contamination Event ENS 444442008-08-27T15:00:00027 August 2008 15:00:00 10 CFR 40.60(b)(1) Unplanned Contamination Event ENS 419772005-09-09T15:00:0009 September 2005 15:00:00 10 CFR 40.60(b)(1) Unplanned Contamination Event ENS 418792005-07-25T14:18:00025 July 2005 14:18:00 10 CFR 40.60(b)(1) Unplanned Contamination Event Due to Filter Failure 2009-07-11T01:00:00 | |