ML081090295
| ML081090295 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim |
| Issue date: | 01/08/2008 |
| From: | Cox A, Spataro W, Brian Sullivan, Susanne Woods - No Known Affiliation |
| To: | Atomic Safety and Licensing Board Panel |
| SECY RAS | |
| References | |
| 50-293-LR, ASLBP 06-848-02-LR, Pilgrim Watch-Intervenor-20, RAS J-63 | |
| Download: ML081090295 (2) | |
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UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION Before the Atomic Safety and Licensing Board Panel January 8, 2008 In the Matter of Entergy Nuclear Generation Company and Entergy Nuclear Operations, Inc.
(Pilgrim Nuclear Power Station)
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Docket No. 50-293-LR ASLBP No. 06-848-02-LR DOCKETED I I5RNpR ADrI 15. 2008 (10:00am)
OFFICE OF SECRETARY RI II FMAKIN(q ANrl Af'.11 If"ICrATIO3N§.q TAF:F Testimony of Alan Cox, Brian Sullivan, Steve Woods, and William Spataro on Pilgrim Watch Contention 1, Regarding Adequacy of Aging Management Program for Buried Pipes and Tanks and Potential Need for Monitoring Wells to Supplement Program
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to the LRA and are provided in Entergy Exhibit 2, which contains relevant excerpts from the LRA.
The objective of the AMPs as applied to buried pipes and tanks is to maintain the pressure boundary of the buried pipes and tanks in a manner providing reasonable assurance that the associated systems can perform their system intended functions. The BPTTP manages loss of material due to external corrosion of buried pipes, while the other AMPs manage loss of material due to internal corrosion of buried pipes.
- 1.
PNPS BPTIP Q36. Please describe the BPTIP.
A36.
(ABC) The Buried Piping and Tanks Inspection Program ("BPTIP") manages the effects of aging on the external surfaces of buried components, specifically, the potential loss of material (i.e., the effect of aging caused by corrosion) from the external surfaces of components buried in soil. As explained in the PNPS LRA, it includes (1) preventive measures to inhibit the corrosion of external surfaces of buried pipes and tanks exposed to soil, such as selection of corrosion resistant materials and/or application of protective coatings, and (2) inspections to manage the effects of external surface corrosion on the pressure-retaining capability of buried carbon steel, stainless steel, and titanium components. See PNPS LRA at Appendix B, Section B.1.2, p. B-17-18 (Entergy Exhibit 2).
- a.
Preventive Measures for CSS and SSW Buried Piping Q37. What preventive measures does PNPS employ for in-scope buried pipes for the CSS and the SSW system?
A37.
(SPW) PNPS employs several preventive measures to protect against the degradation of buried pipes in the CSS and SSW system (which do not contain buried tanks).
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