ML073610117
| ML073610117 | |
| Person / Time | |
|---|---|
| Site: | Pilgrim |
| Issue date: | 12/19/2007 |
| From: | - No Known Affiliation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| 06-848-02-LR | |
| Download: ML073610117 (4) | |
Text
From:
"Lynch, Joseph R" <jlynch4@entergy.com>
To:
"Perry Buckberg" <PHB1@nrc.gov>
Date:
12/19/2007 12:56:08 PM
Subject:
RE: Salt Service Water System cc:
"Stephen Bethay" <SBethay@entergy.com>,"James Davis"
<JAD@nrc.gov>,"Louise Lund" <LXL@nrc.gov>
- Perry, The last sentence quoted from the highlighted paragraph on page 3-37 of NUREG-1891 is in error. The buried SSW inlet piping was replaced with titanium piping wrapped with the same external coating as the original carbon steel pipe. I would recommend that the dates referenced in the NUREG be omitted in any future revisions as the piping replacements were accomplished over a period of years and are not properly characterized with stating "in 1995 and 1997." If there are any further questions or clarifications, please do not hesitate to contact me.
Have a safe and happy holiday,
- Regards, Joseph R. Lynch Manager, Licensing PNPS (508) 830-8403 (Direct)
(508) 728-1421 (Blackberry) jlynch4@entergy.com From: Perry Buckberg [1]
Sent: Wednesday, December 19, 2007 10:19 AM To: Lynch, Joseph R Cc: Bethay, Stephen; James Davis; Louise Lund
Subject:
Salt Service Water System
- Joe,
It has come to my attention that NUREG-1891 may be in error with regards to some specific information on the SSW system piping.
The following paragraph from NUREG-1891 begins on page 3-37:
From an additional historical perspective, the SSW system has had leaks on the buried inlet (screenhouse to auxiliary bays) piping due to internal corrosion. The original piping material was rubber-lined carbon steel wrapped with reinforced fiberglass, coal tar saturated felt, and heavy Kraft paper. The leaks were determined to be results of the rubber lining degrading from contact with sea water. These pipes were replaced in 1995 and 1997 with the same external and internal coatings as for the original pipe.
Please confirm that the last sentence is in error, and that buried inlet pipes were replaced with titanium pipe with the same external coating as the original pipe.
- Thanks, Perry Buckberg Project Manager Nuclear Regulatory Commission Division of License Renewal phone: (301)415-1383 fax: (301)415-3031 phb1@nrc.gov
Hearing Identifier:
PilgrimRenewalNonPublic Email Number:
178 Mail Envelope Properties (477373F6.HQGWDO01.TWGWPO03.200.2000005.1.1326DB.1)
Subject:
RE: Salt Service Water System Creation Date:
12/19/2007 12:56:08 PM From:
"Lynch, Joseph R" <jlynch4@entergy.com>
Created By:
jlynch4@entergy.com Recipients "Stephen Bethay" <SBethay@entergy.com>
"James Davis" <JAD@nrc.gov>
"Louise Lund" <LXL@nrc.gov>
"Perry Buckberg" <PHB1@nrc.gov>
Post Office Route TWGWPO03.HQGWDO01 nrc.gov Files Size Date & Time MESSAGE 2076 12/19/2007 12:56:08 PM TEXT.htm 8888 12/27/2007 9:44:22 AM Mime.822 13815 12/27/2007 9:44:22 AM Options Priority:
Standard Reply Requested:
No Return Notification:
None None Concealed
Subject:
No Security:
Standard
- Perry, The last sentence quoted from the highlighted paragraph on page 3-37 of NUREG-1891 is in error. The buried SSW inlet piping was replaced with titanium piping wrapped with the same external coating as the original carbon steel pipe. I would recommend that the dates referenced in the NUREG be omitted in any future revisions as the piping replacements were accomplished over a period of years and are not properly characterized with stating in 1995 and 1997. If there are any further questions or clarifications, please do not hesitate to contact me.
Have a safe and happy holiday,
- Regards, Joseph R. Lynch Manager, Licensing PNPS (508) 830-8403 (Direct)
(508) 728-1421 (Blackberry) jlynch4@entergy.com From: Perry Buckberg [2]
Sent: Wednesday, December 19, 2007 10:19 AM To: Lynch, Joseph R Cc: Bethay, Stephen; James Davis; Louise Lund
Subject:
Salt Service Water System
- Joe, It has come to my attention that NUREG-1891 may be in error with regards to some specific information on the SSW system piping.
The following paragraph from NUREG-1891 begins on page 3-37:
From an additional historical perspective, the SSW system has had leaks on the buried inlet (screenhouse to auxiliary bays) piping due to internal corrosion. The original piping material was rubber-lined carbon steel wrapped with reinforced fiberglass, coal tar saturated felt, and heavy Kraft paper. The leaks were determined to be results of the rubber lining degrading from contact with sea water. These pipes were replaced in 1995 and 1997 with the same external and internal coatings as for the original pipe.
Please confirm that the last sentence is in error, and that buried inlet pipes were replaced with titanium pipe with the same external coating as the original pipe.
- Thanks, Perry Buckberg Project Manager Nuclear Regulatory Commission Division of License Renewal phone: (301)415-1383 fax: (301)415-3031 phb1@nrc.gov Page 1 of 1 12/27/2007 file://c:\\EMailCapture\\PilgrimRenewalNonPublic\\178\\attch1.htm