ML101180463

Preliminary RAIs for Watts Bar Unit 2 FSAR Section 11.3 and 11.4

ML101180463
Person / Time
Site:	Watts Bar
Issue date:	04/28/2010
From:	Joel Wiebe Watts Bar Special Projects Branch
To:	Crouch B Tennessee Valley Authority
Wiebe, Joel NRR/DORL/WBSP, 415-6606
References
Download: ML101180463 (2)

Text

From: Wiebe, Joel Sent: Wednesday, April 28, 2010 1:52 PM To: Bill Crouch Cc: Tony Langley

Subject:

Preliminary RAIs for Watts Bar Unit 2 FSAR Section 11.3 and 11.4 RAI 11.3-02: The references in Section 11.3.2 to Tables 11.3-4/5 appear incorrect. A review of the tables indicate the reference to 11.3-4 should be 11.3-3and 11.3-5 should be 11.3-4 and 11.3-5 (these two tables appear to be sheet 1 and sheet 2 of the same table or some of the sheets are missing).

RAI 11.3-03: Section 11.3.3.1 under "Waste Gas Compressors" did not include a revision bas for the deletion of: "Each unit is sized for 40 gpm."

RAI 11.3-04: Section 11.3.3.2, "Instrumentation Design," failed to note a revision to the first paragraph where a sentence was deleted.

RAI 11.3-05: Section 11.3.3.2, "Instrumentation Design." last paragraph. Confirm that this paragraph accurately describes the operation of this instrument. Specifically address the difference between how the Unit 2 instrument operates compared to how the Unit 1 instrument operates as described in the Unit 1 UFSAR.

RAI 11.3-06: The reference to Table 11.3-3 in Section 11.3.7.2 appears to be incorrect and should be 11.3-2.

RAI 11.3-07: Section 11.3.7.5 references Table 11.3-8c. The staff is unable to find Table 11.3-8c in the applicant's submittal.

RAI 11.3-08: Section 11.3.8 under Auxiliary Building Vent - two editorial corrections: third line "throu" should be "through" and fifth line "Auxiliary Building exhaust bent" should be " Auxiliary Building exhaust vent."

RAI 11.4-01: Table 11.4-1, "Process and Effluent Radiation Monitors - Liquid Media," includes the "Steam Generator Blowdown Liquid Sample Monitor" and the "Boric Acid Evaporator Condensate Monitor." Both of these monitors have a footnote that states "Deleted by Amendment 95." Explain why these monitors are being deleted and why are they still included in the table, if not to be installed in the plant?

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Subject:

Preliminary RAIs for Watts Bar Unit 2 FSAR Section 11.3 and 11.4 Sent Date: 4/28/2010 1:51:35 PM Received Date: 4/28/2010 1:51:00 PM

From: Wiebe, Joel Created By: Joel.Wiebe@nrc.gov Recipients:

WDCrouch@TVA.gov (Bill Crouch)

Tracking Status: None DTLangley@TVA.gov (Tony Langley)

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HQCLSTR02.nrc.gov Files Size Date & Time MESSAGE 7031 4/28/2010 Options Expiration Date:

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