ENS Event | |
|---|---|
18:00 Oct 7, 2004 | |
| Title | Offsite Notification Due to an Unscheduled Release |
| Event Description | The licensee provided the following information via facsimile:
[The] Maine Emergency Management Agency [was notified] of an unscheduled release that occurred during the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> period ending at midnight on Thursday, 10/07/04. Maine Yankee identified a minor release of 3.18 E-6 Curies of liquid from the site. This release exceeded the value projected for this period and is therefore classified as unscheduled. The total liquid release resulted in a minor exposure value of 2.21 E-5 millirem. The cause of the release resulted from groundwater intrusion of the outfall piping during soil remediation and failure of the clay barrier that was installed. [The] release occurred from 9/30/04 until 10/6/04. The outfall piping is being removed and the area backfilled to eliminate liquid releases via this pathway. The licensee stated that the radionuclides involved were Cesium-137, Bismuth-214, and Lead-214. The licensee has notified the NRC Region 1 (Roberts). |
| Where | |
|---|---|
| Maine Yankee Maine (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-2.52 h-0.105 days <br />-0.015 weeks <br />-0.00345 months <br />) | |
| Opened: | Doug Kinney 15:29 Oct 7, 2004 |
| NRC Officer: | Bill Huffman |
| Last Updated: | Oct 7, 2004 |
| 41101 - NRC Website
Loading map... | |
Unit 1 | |
|---|---|
| Reactor critical | Not Critical |
| Scram | No |
| Before | Decommissioned (0 %) |
| After | Decommissioned (0 %) |
Maine Yankee with 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
WEEKMONTHYEARENS 567802023-10-06T14:25:0006 October 2023 14:25:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 72.75(b)(2), Offsite Notification Offsite Notification ENS 564682023-04-13T23:05:00013 April 2023 23:05:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification for Sewage Discharge ENS 488982013-04-08T19:35:0008 April 2013 19:35:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release, 10 CFR 72.75(b)(2), Offsite Notification Offsite Notification to the Maine Department of Environmental Protection ENS 411012004-10-07T18:00:0007 October 2004 18:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to an Unscheduled Release ENS 406442004-03-31T04:00:00031 March 2004 04:00:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification to the State of Maine Concerning an Unscheduled Rad Release ENS 405772004-03-09T14:55:0009 March 2004 14:55:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notifications to State Agencies Due to Liquid Release 2023-04-13T23:05:00 | |