ML062410490: Difference between revisions

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| issue date = 08/24/2006
| issue date = 08/24/2006
| title = Special Report - Unusual Environment Event
| title = Special Report - Unusual Environment Event
| author name = Scherer A E
| author name = Scherer A
| author affiliation = Southern California Edison Co
| author affiliation = Southern California Edison Co
| addressee name =  
| addressee name =  
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=Text=
=Text=
{{#Wiki_filter:SOUTHERN CALIFORNIA A. Edward Scherer EDISON' Manager of Nuclear Regulatory Affairs An EDISON INTERNATIONAL I Company August 24, 2006 U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555  
{{#Wiki_filter:SOUTHERN CALIFORNIA                                                   A. Edward Scherer EDISON'                                                               Manager of Nuclear Regulatory Affairs An EDISON INTERNATIONAL I Company August 24, 2006 U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555


==Subject:==
==Subject:==
Docket No. 50-361 Special Report -Unusual Environmental Event San Onofre Nuclear Generating Station, Unit 2 Gentlemen:
Docket No. 50-361 Special Report - Unusual Environmental Event San Onofre Nuclear Generating Station, Unit 2 Gentlemen:
In accordance with Section 4.1 of Appendix B to Facility Operating License No. NPF-10 for San Onofre Nuclear Generating Station Unit 2, this letter provides the required written report for an occurrence involving an unusual environmental event. On August 1, 2006, Southern California Edison (SCE) reported an "unusual fish kill" to the U. S. Nuclear Regulatory Commission (NRC), and this letter provides the required 30-day follow-up written report.While the NRC has not specified a reporting limit for an unusual fish kill, SCE uses 4,500 pounds as a guideline for evaluating fish kill events. On July 31, 2006, SCE began a Heat Treat of the Unit 2 intake structure, and on August 1, 2006, SCE removed approximately 5,700 pounds of fish, of which the large majority were Yellowfin Croakers.
In accordance with Section 4.1 of Appendix B to Facility Operating License No. NPF-10 for San Onofre Nuclear Generating Station Unit 2, this letter provides the required written report for an occurrence involving an unusual environmental event. On August 1, 2006, Southern California Edison (SCE) reported an "unusual fish kill" to the U. S. Nuclear Regulatory Commission (NRC), and this letter provides the required 30-day follow-up written report.
SCE believes the unusual fish kill was due to the higher ocean water temperatures during this past month.At the time of the event, Units 2 and 3 were operating at about 99% and 100% power, respectively, and plant operations did not change during this period.If you have any questions, please contact Mr. Clay E. Williams at (949) 368-6707.Sincerely, cc: B. S. Mallett, NRC Regional Administrator, Region IV K. Kalyanam, NRC Project Manager, San Onofre Units 2, and 3 C. C. Osterholtz, NRC Senior Resident Inspector, San Onofre Units 2 and 3 P.O. Box 128 San Clemente, CA 92672 949-368-7501 Fax 949-368-7575}}
While the NRC has not specified a reporting limit for an unusual fish kill, SCE uses 4,500 pounds as a guideline for evaluating fish kill events. On July 31, 2006, SCE began a Heat Treat of the Unit 2 intake structure, and on August 1, 2006, SCE removed approximately 5,700 pounds of fish, of which the large majority were Yellowfin Croakers. SCE believes the unusual fish kill was due to the higher ocean water temperatures during this past month.
At the time of the event, Units 2 and 3 were operating at about 99% and 100% power, respectively, and plant operations did not change during this period.
Ifyou have any questions, please contact Mr. Clay E. Williams at (949) 368-6707.
Sincerely, cc:     B. S. Mallett, NRC Regional Administrator, Region IV K. Kalyanam, NRC Project Manager, San Onofre Units 2, and 3 C. C. Osterholtz, NRC Senior Resident Inspector, San Onofre Units 2 and 3 P.O. Box 128 San Clemente, CA 92672 949-368-7501 Fax 949-368-7575}}

Latest revision as of 14:38, 23 November 2019

Special Report - Unusual Environment Event
ML062410490
Person / Time
Site: San Onofre Southern California Edison icon.png
Issue date: 08/24/2006
From: Scherer A
Southern California Edison Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML062410490 (1)
v • d • e


Text

SOUTHERN CALIFORNIA A. Edward Scherer EDISON' Manager of Nuclear Regulatory Affairs An EDISON INTERNATIONAL I Company August 24, 2006 U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555

Subject:

Docket No. 50-361 Special Report - Unusual Environmental Event San Onofre Nuclear Generating Station, Unit 2 Gentlemen:

In accordance with Section 4.1 of Appendix B to Facility Operating License No. NPF-10 for San Onofre Nuclear Generating Station Unit 2, this letter provides the required written report for an occurrence involving an unusual environmental event. On August 1, 2006, Southern California Edison (SCE) reported an "unusual fish kill" to the U. S. Nuclear Regulatory Commission (NRC), and this letter provides the required 30-day follow-up written report.

While the NRC has not specified a reporting limit for an unusual fish kill, SCE uses 4,500 pounds as a guideline for evaluating fish kill events. On July 31, 2006, SCE began a Heat Treat of the Unit 2 intake structure, and on August 1, 2006, SCE removed approximately 5,700 pounds of fish, of which the large majority were Yellowfin Croakers. SCE believes the unusual fish kill was due to the higher ocean water temperatures during this past month.

At the time of the event, Units 2 and 3 were operating at about 99% and 100% power, respectively, and plant operations did not change during this period.

Ifyou have any questions, please contact Mr. Clay E. Williams at (949) 368-6707.

Sincerely, cc: B. S. Mallett, NRC Regional Administrator, Region IV K. Kalyanam, NRC Project Manager, San Onofre Units 2, and 3 C. C. Osterholtz, NRC Senior Resident Inspector, San Onofre Units 2 and 3 P.O. Box 128 San Clemente, CA 92672 949-368-7501 Fax 949-368-7575

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