ENS 48268
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ENS Event | |
|---|---|
15:31 Sep 2, 2012 | |
| Title | Offsite Notification Due to Non-Radiological Leakage from the Neutralization Tank |
| Event Description | In response to identification of a non-radiological leak from the Neutralization Tank at Callaway Plant today (9/2/2012), notification was made to the EPA National Spill Response Center at 1031 CDT and to the Missouri Department of Natural Resources at 1043 CDT. The leak was initially identified at 0926 CDT. From testing of a sample taken from the tank, the pH of the tank fluid was reported to be 1.9. Initially, the leak was to the ground and into a ditch that is part of a flow path that ultimately leads off site via a storm sewer. However, there is no indication of any of the leakage flowing beyond the site boundary via that pathway since action was promptly taken to divert the leakage to the sump area of the equalization tank (on site). The leakage will thus be collected there until it terminates. At 0926 CDT, the leakage rate was estimated to be approximately 20 gpm; at 1025 CDT the leakage was estimated to be approximately 50 gpm. The leak is at the bottom of the Neutralization Tank, and thus will terminate when the tank is emptied. At 1218 CDT, the fluid level in the Neutralization Tank was at 17%. The initial quantity of fluid in the tank (at the onset of the leak) was approximately 110000 gallons.
This spill was reported to offsite organizations, as noted. This event is reportable to the NRC pursuant to 10CFR50.72(b)(2)(xi). The NRC Senior Resident Inspector has been notified of the event and this ENS notification. 17% tank fluid level corresponds to approximately 25000 gallons. |
| Where | |
|---|---|
Callaway  Missouri (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-0.77 h-0.0321 days <br />-0.00458 weeks <br />-0.00105 months <br />) | |
| Opened: | David Bonvillian 14:45 Sep 2, 2012 |
| NRC Officer: | Donald Norwood |
| Last Updated: | Sep 2, 2012 |
| 48268 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 564012023-03-09T17:53:0009 March 2023 17:53:00
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