ENS Event | |
|---|---|
19:07 Mar 31, 2006 | |
| Title | Low Tritium Concentration Levels Found Near Underground Piping |
| Event Description | Followup information to the February 15, 2006, notification (ENS#42339 [at Braidwood]) involving the discovery of elevated levels of tritium in several vacuum breaker vaults located along the discharge piping to the Rock River. At that time we indicated we planned to install monitoring wells along this pipeline to determine if tritium has migrated from these vaults.
Fifteen shallow test wells and eight deeper, more permanent wells were drilled on company property to obtain water samples. Of the 23 wells, two had measurable levels of tritium, however they were well below the Environmental Protection Agency's standard for drinking water (20,000 picocuries per liter). These elevated levels pose no health or safety hazard to the employees or public. Investigation into the source of the elevated tritium levels continues. A press release is planned for the afternoon of March 31, 2006 regarding the results obtained from these monitoring wells. Incident reported according to 10 CFR 50.72 (c)(2) and the licensee notified the NRC Resident Inspector. |
| Where | |
|---|---|
Byron  Illinois (NRC Region 3) | |
| Reporting | |
| Other Unspec Reqmnt | |
| Time - Person (Reporting Time:+-5 h-0.208 days <br />-0.0298 weeks <br />-0.00685 months <br />) | |
| Opened: | Jeff Atkins 14:07 Mar 31, 2006 |
| NRC Officer: | Arlon Costa |
| Last Updated: | Mar 31, 2006 |
| 42457 - NRC Website
Loading map... | |
Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
Unit 2 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
WEEKMONTHYEARENS 476362012-02-03T06:00:0003 February 2012 06:00:00
[Table view]Other Unspec Reqmnt ENS 424572006-03-31T19:07:00031 March 2006 19:07:00 Other Unspec Reqmnt Low Tritium Concentration Levels Found Near Underground Piping ENS 414502005-02-28T08:06:00028 February 2005 08:06:00 Other Unspec Reqmnt Discovery of After-The-Fact Emergency Condition - Unusual Event ENS 401172003-08-28T22:43:00028 August 2003 22:43:00 Other Unspec Reqmnt 24-Hour Condition of License Report Involving Potential Violation of Maximum Power Level 2012-02-03T06:00:00 | |