ML060480413: Difference between revisions
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{{#Wiki_filter: | {{#Wiki_filter:RULES rat~i'GlRECLTiVES | ||
.D 1/004 I tf T~fi~ | |||
1311 Stcge Rd. | |||
Guilford, VT 05301 77/ft/i7z February 6, 2006 f X, FEB 15 Ml 8: 36 Chief, Rules and Directives Branch Division of Administrative Services Office of Administration U.S. Nuclear Regulatory Commission RFr1-i1\!/D Washington DC 20555-0001 Re: page 1774 Federal Register/Vol.71, No.7/Wednesday January 11,2006 | |||
==Dear Sir:== | ==Dear Sir:== | ||
The probabilistec risk assessment used plrnt to be new. | |||
The probabilistec risk assessment used by the licensee assumes the plrnt to be new. | |||
It is, however, 33 years old. Without a complete Independent Safety Assessment, it is impossible to know which components are cracked, leaking, degraded or even mispositioned, and therefore to determine the real spfety margins, It is impossible for the NRC staff to assure the public that there is no significant increase the poobability of an accident. | |||
Recent events involving td1e high pressure coolant injection system, a mispositioned valve in the containment, the mans.e problems discoversi in the superficial inspection already performed', and the transformer fire of 2004, are all evidence that a thorough safety assessment must be performed before an uprate is granted approval. | |||
Sincerely, Sarah Kotkov | |||
,-_,2 19j> | |||
/-f -' S3 Con-C CC/-XA) 6__1--e -eP3}} | |||
Revision as of 23:14, 23 November 2019
| ML060480413 | |
| Person / Time | |
|---|---|
| Site: | Vermont Yankee File:NorthStar Vermont Yankee icon.png |
| Issue date: | 02/06/2006 |
| From: | Kotkov S - No Known Affiliation |
| To: | NRC/ADM/DAS/RDB |
| References | |
| %dam200606, 71FR1774 00043 | |
| Download: ML060480413 (1) | |
Text
RULES rat~i'GlRECLTiVES
.D 1/004 I tf T~fi~
1311 Stcge Rd.
Guilford, VT 05301 77/ft/i7z February 6, 2006 f X, FEB 15 Ml 8: 36 Chief, Rules and Directives Branch Division of Administrative Services Office of Administration U.S. Nuclear Regulatory Commission RFr1-i1\!/D Washington DC 20555-0001 Re: page 1774 Federal Register/Vol.71, No.7/Wednesday January 11,2006
Dear Sir:
The probabilistec risk assessment used by the licensee assumes the plrnt to be new.
It is, however, 33 years old. Without a complete Independent Safety Assessment, it is impossible to know which components are cracked, leaking, degraded or even mispositioned, and therefore to determine the real spfety margins, It is impossible for the NRC staff to assure the public that there is no significant increase the poobability of an accident.
Recent events involving td1e high pressure coolant injection system, a mispositioned valve in the containment, the mans.e problems discoversi in the superficial inspection already performed', and the transformer fire of 2004, are all evidence that a thorough safety assessment must be performed before an uprate is granted approval.
Sincerely, Sarah Kotkov
,-_,2 19j>
/-f -' S3 Con-C CC/-XA) 6__1--e -eP3