ML101190444

E-Mail from Chou to Zeller, Questions Summer Past Containment Concrete Work Activities

ML101190444
Person / Time
Site:	Crystal River
Issue date:	10/16/2009
From:	Chou R NRC/RGN-II/DRS/EB3
To:	John Zeiler NRC/RGN-II/DRP/RPB5
References
FOIA/PA-2010-0116
Download: ML101190444 (1)

Text

Franke, Mark, From: Chou, Rich .

Sent: Friday, October 16, 2009 12:42 PM To: Zeiler, John Cc: McCoy, Gerald; Wright, Donna; Martin, Robert; Franke,,Mark; Williams, Robert; Chou, Rich

Subject:

RE: Questions Re Summer Past Containment Concrete Work Activities John:

Thank you very much for your importance information.

From:.Zeiler, John '

Sent: Friday, October 16, 2009 11:58 AM To: Chou, Rich Cc: McCoy, Gerald; Wright, Donna; Martin, Robert

Subject:

Questions Re Summer Past Containment Concrete Work Activities Rich, As discussed over the. phone earlier, the licensee's SG replacement was conducted in 1994;:during which time they brought them in through the equipment hatch and did not have to0make any containment cutting to get them in.

The licensee told me (JasonWeathersby @ 803-345-4914), that they have not found any' records where there was any activity where the containment concrete has been cut into or repaired that may have afforded an opportunity to look for any potential degradations similar to Crystal River issuesý0over the life'of the plant, Likewise they have already been reviewing their previous records of containment inspection results and have not identified where any past'problems have been noted above the expected amount of concrete*surface imperfections.

As.an 'added note, Dale Krause is their civil engineering expert, and he is actually'on the present Crystal River licensee ins'pection root cause team. From his resports back to the site, he does not expect Summer to have any similar,, p'roblems based on his knowledge of the concern, mainly because Summer'was constructed 10 years after:Crysta'l River,: with higher concrete design specification standards, especially in the area of radial structural supports in the specific area that Crystal River is seeing problems in.

John Zeiler Senior Resident Inspector Virgil C. Summer Nuclear Station Region I1,USNRC 83 (b)(6) 8office)

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