ENS Event | |
|---|---|
15:56 Aug 13, 2010 | |
| Title | Offsite Notification for Fish Kill Due to High Lake Temperature |
| Event Description | At 1056 CDST on 08/13/10, it was discovered that a fish kill took place in LaSalle County Nuclear Station's cooling lake, due to increased temperatures. Approximately 2,000 fish, primarily gizzard shad, but also included bass and walleye were found by plant workers. As summer air temperatures increased, the cooling lake temperatures increased above 93 degrees F, the threshold at which species susceptible to increased temperature begin to perish. Illinois Department of Natural Resources (IDNR) has been notified that a fish kill has occurred. Efforts are under way to contact the IDNR district fish biologist to quantify the mortality.
This notification is made in accordance with the LaSalle County Station Facility Operating License, Appendix B, Section 4.1 'Unusual or Important Environmental Events', and 10CFR50.72(b)(2)(xi). The licensee notified the NRC Resident Inspector. A news release is planned for this event. |
| Where | |
|---|---|
LaSalle  Illinois (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-1.48 h-0.0617 days <br />-0.00881 weeks <br />-0.00203 months <br />) | |
| Opened: | Todd Granlund 14:27 Aug 13, 2010 |
| NRC Officer: | Joe O'Hara |
| Last Updated: | Aug 13, 2010 |
| 46173 - 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 557232022-02-01T19:28:0001 February 2022 19:28:00
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