ML12037A229

E-mail from M. King to R. Bernardo, NRR; New Ope Forum Posting - Earthquake at Mineral, VA Affects North Anna - a Few Minor comments- Nice Comm

ML12037A229
Person / Time
Site:	North Anna
Issue date:	09/08/2011
From:	Mark King NRC/NRR/DIRS/IOEB
To:	Robert Bernardo NRC/NRR/DIRS/IOEB
References
FOIA/PA-2011-0357
Download: ML12037A229 (2)

Text

King, Mark From: King, Mark '--1 Sent: Thursday, S1tAmber 08, 2011 5:10 PM To: Bernardo, Robert Cc: Thorp, John

Subject:

RE: New OpE Forum Posting - Earthquake at Mineral, VA Affects North Anna - a few minor comments - NICE COMM my few minor comments (editorial / wordsmithing, nothing technical):

1) When referencing to the electrical drawing might be good to indicate where the 2H EDG and SBO DG are located: See attached for pictures of the North Anna Electrical Distribution System,12H EDG is to the right*

'f 2H Bus at the bottom of the drawing, the SBO DG earrang is shown in the dotted-box to the far

2) Suggest revising sentences as shown:

In addition to the ALERT at North Anna, a number of oýtýher plants ?lsoq declared a Notice of Unusual Event (NOUE) due to seismic activity at their, site'.

) Spe 6ut the first use of acn

• OBE and 5DBE criteria were exceeded; However, CAy calculations indicate that significant damage would not be expected.

• Extensive actions are underway to inspect, evaluate, test and repair, if necessary, SSCs to ensure they are capable of performing their required design basis functions. Results are confirming the CAV expectations.

• To date, no safety related SSCs have been identified that require repair.

• Long term actions are planned to improved plant seismic monitoring capability and to re-evaluate plant OBE and DBE criteria in conjunction with the resolution to G_-199.

• ) Dominioni miss-spelled.

On September 8, Dominion representatives briefed the NRC staff on Overview of the 8/23 Earthquake Response and Restart Readiness Demonstration Plan. A link will be provided to the presentation once it is posted in ADAMS. bDominonn reported that:

5) Suggest adding spaces between these items (for ease of clicking hyperlinks by the users)

EPRI NP-5930 "A Criterion for Determining Exceedance of the Operating Basis Earthquake"

ýpaýce EPRI NP-6695 "Guidelines for Nuclear Plant Response in an Earthquake".

space EPRI TR-100082 "Standardization of the Cumulative Absolute Velocity

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end of comments -------

G a ramre-at i~obIon this 11MM I checked all the links and they all worked great!

I now have to go see a doctor about my carpal tunnel syndrome., (shhh...)

Just a reminder you have the Clearinghouse chair on Friday, thanks.

Have a great weekend.

Later, Mark

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original message ----------------------------------

From: Bernardo, Robert I

Sent: Thursday, September 08, 2011 4:08 PM

Subject:

New OpE Forum Posting - Earthquake at Mineral, VA Affects North Anna This e-mail is being sent to notify recipients of a new posting on the @Operating Experience Community Forum. Recipients are expected to review the posting for applicability to their areas of regulatory responsibility and consider appropriate actions. However, information contained in the posting is not tasking; therefore, no specific action or written response is required.

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Bob Bernardo Reactor Systems Engineer US Nuclear Regulatory Commission NRR/DIRS/IOEB Mail Stop: O-7C02A 301-415-2621 Robert.Bernardo@nrc.gov 2