ENS 53504
ENS Event | |
|---|---|
04:00 Jul 12, 2018 | |
| Title | Offsite Notification to South Carolina Department of Health and Environmental Control |
| Event Description | For this event, notification was made to the South Carolina (SC) Department of Health and Environmental Control (DHEC) per R 61-68 E.4.b which requires 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> notification upon discovery of an 'unauthorized discharge into waters of the State which may cause or contribute to an excursion of a water quality standard.' While it was not conclusively determined that the leak migrated to the groundwater, Columbia made the notification based on discussions with SCDHEC. SCDHEC was notified by phone on July 12, 2018 at 1530 EDT.
An equipment issue was noted on July 10, 2018 during ongoing maintenance activities to repair the liner associated with Hydrofluoric Acid Spiking Station No. 2 in the conversion process area of the Columbia plant. While the polypropylene liner was removed for repair work, a crack was noticed in the epoxy coating covering the diked area at the spiking station. Upon further investigation, a hole approximately 3 inches in diameter was found penetrating the concrete floor and into the soil beneath. Measurements taken reflect the depth of the hole as approximately 6 feet into the soil. Several samples of soil were obtained from the immediate area the morning of July 11, 2018. These samples were analyzed at the Columbia Plant Chemical Laboratory with results obtained the morning of July 12. The highest measurements reported from the samples are 4,000 ppm Uranium and 24 ppm Fluoride, with a pH of 2.84. The Hydrofluoric Acid Spiking Station No. 2 remains out of service. This is a localized issue underneath the floor of the existing structure and well within the boundaries of the site, thus there is no impact to public health and safety or facility workers. The spiking station remains removed from service while the event is being fully evaluated. Maintenance has placed a metal plate over the hole as an interim measure to protect the environment from any potential leaks from associated piping. Monitoring of closest downgradient well will be performed within the next seven days. Appropriate repairs or modifications will be completed to the concrete pad and protective layers before the equipment is returned to service. Issue Report 2018-12123 was entered into the Corrective Action Program. |
| Where | |
|---|---|
| Westinghouse Electric Corporation Columbia, South Carolina (NRC Region 2) | |
| License number: | SNM-1107 |
| Reporting | |
| Part 70 App A (C) | |
| Time - Person (Reporting Time:+12.22 h0.509 days <br />0.0727 weeks <br />0.0167 months <br />) | |
| Opened: | Gerard Couture 16:13 Jul 12, 2018 |
| NRC Officer: | Donald Norwood |
| Last Updated: | Jul 12, 2018 |
| 53504 - NRC Website | |
Westinghouse Electric Corporation with Part 70 App A (C) | |
WEEKMONTHYEARENS 562322022-11-17T16:50:00017 November 2022 16:50:00
[Table view]Part 70 App A (C) Offsite Notification Due to Injured Employee Being Admitted to Hospital ENS 543312019-10-14T04:00:00014 October 2019 04:00:00 Part 70 App A (C) Three Individuals Sent to Hospital Due to Concerns After Completion of Maintenance Work ENS 537462018-11-19T05:00:00019 November 2018 05:00:00 Part 70 App A (C), 10 CFR 70.50(b)(3) Contaminated Worker Requiring Medical Treatment ENS 535042018-07-12T04:00:00012 July 2018 04:00:00 Part 70 App A (C) Offsite Notification to South Carolina Department of Health and Environmental Control ENS 524402016-12-16T12:00:00016 December 2016 12:00:00 Part 70 App A (C) Offsite Notification of an Industrial Safety Incident ENS 514252015-09-25T08:30:00025 September 2015 08:30:00 Part 70 App A (C) Offsite Notification Due to Employees Injured by Non-Radioactive High Temperature Water and Steam ENS 477322012-03-11T13:00:00011 March 2012 13:00:00 Part 70 App A (C) Offsite Notification to State Required by Npdes Permit for a Bypass Discharge ENS 459192010-05-12T16:20:00012 May 2010 16:20:00 Part 70 App A (C) Offsite Notification ENS 448582009-01-28T05:00:00028 January 2009 05:00:00 Part 70 App A (C) Notification to Sc-Dhec Concerning Exceedance of Biological Oxygen Demand (Bod5) Limit ENS 445692008-10-15T18:40:00015 October 2008 18:40:00 Part 70 App A (C) Offsite Notification to Sc-Dhec ENS 443662008-07-25T20:00:00025 July 2008 20:00:00 Part 70 App A (C) State Agency Notified of Discharge of Ammonia Exceeding State Limits ENS 437992007-11-20T20:00:00020 November 2007 20:00:00 Part 70 App A (C) Tamper Seals Broken on Uf6 Shipping Canister ENS 437322007-10-17T22:30:00017 October 2007 22:30:00 Part 70 App A (C) Offsite Notification Due to Transportation Package Requirements Not Being Properly Met 2022-11-17T16:50:00 | |