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Category:E-Mail
MONTHYEARML24022A2592024-01-22022 January 2024 NRR E-mail Capture - Acceptance Review Results for Watts Bar Nuclear Plant, Unit 1, License Amendment Request to Revise TS LCO 3.8.2 to Remove Note C-S Diesel Generator ML24016A0762024-01-16016 January 2024 NRR E-mail Capture - Acceptance Review Results for Watts Bar Nuclear Plant, Units 1 and 2 - License Amendment Request to Rebaseline of Sections 3.1 and 3.2 of the Technical Specifications ML23347A0642023-12-13013 December 2023 12-13-23 Email from Kimberly Green to Wells, Russell, Subject: Results of NRC SUNSI Review of Watts Bar Nuclear Plant Dual-Unit UFSAR, Amendment 5 ML23334A0932023-11-28028 November 2023 NRR E-mail Capture - Acceptance Review Results for Watts Bar Nuclear Plant, Units 1 and 2, License Amendment Request to Revise TS Surveillance Requirement 3.9.5.1 to Reduce RHR Flow Rate During Mode 6 ML23319A1662023-11-0202 November 2023 NRR E-mail Capture - Acceptance Review Results for Browns Ferry Nuclear Plant, Sequoyah Nuclear Plant, and Watts Bar Nuclear Plant, Exemption Request Related to 10 CFR 37.11(c)(2) ML23254A2872023-09-11011 September 2023 NRR E-mail Capture - Acceptance Review Results for Watts Bar Nuclear Plant, Units 1 and 2, License Amendment Request to Revise TS Table 1.1-1 Re Number of Required Rvh Closure Bolts ML23236A2562023-08-24024 August 2023 NRR E-mail Capture - Acceptance Review Results for the Sequoyah and Watts Bar License Amendment Request to Adopt TSTF-567 (L-2023-LLA-0106) ML23191A8672023-07-10010 July 2023 NRR E-mail Capture - Acceptance Review Results for Watts Bar, Units 1 and 2, License Amendment Request to Adopt TSTF-501-A, Revision 1, Relocate Stored Fuel Oil and Lube Oil Volume Values to Licensee Control ML23166A1142023-06-15015 June 2023 Document Request for Watts Bar Nuclear Plant - Radiation Protection Inspection - Inspection Report 2023-03 ML23150A2472023-05-25025 May 2023 NRR E-mail Capture - Audit Plan Related to Review of the Watts Bar Nuclear Plant, Units 1 and 2, License Amendment Request to Increase the Number of Tritium Producing Burnable Absorber Rods ML23116A1492023-04-21021 April 2023 NRR E-mail Capture - Acceptance Review Results for Watts Bar Nuclear Plant, Units 1 and 2, License Amendment Request to Increase the Number of Tritium Producing Burnable Absorber Rods ML23075A0032023-03-13013 March 2023 NRR E-mail Capture - Acceptance Review Results for Watts Bar, Units 1, 2, and 3, License Amendment Request to Revise TS 3.7.11, Required Actions A.1 and E.1 Footnotes Re Date for the Modification ML23072A0722023-03-10010 March 2023 NRR E-mail Capture - (External_Sender) State Consultation - Sequoyah Nuclear Plant, Units 1 and 2; and Watts Bar Nuclear Plant, Units 1 and 2, License Amendment Request to Revise Technical Specification 3.4.12 (L-2022-LLA-0103) ML23067A2372023-03-0808 March 2023 WB_2023-02_RP_inspection_doc_request ML23013A0382023-01-12012 January 2023 NRR E-mail Capture - (External_Sender) State Consultation for Alabama - Browns Ferry, Units 1, 2 and 3; Sequoyah, Units 1 and 2; and Watts Bar, Units 1 and 2, License Amendment Request to Adopt TSTF-529, Revision 4 (L-2022-LLA-0088) ML23013A0362023-01-12012 January 2023 NRR E-mail Capture - (External_Sender) State Consultation for Alabama - Browns Ferry, Units 1, 2 and 3; Sequoyah, Units 1 and 2; and Watts Bar, Units 1 and 2, License Amendment Request to Adopt TSTF-554-A, Revision 1 (L-2022-LLA-0100) ML22356A2982022-12-22022 December 2022 Email Response to Letter, Dated November 22, 2022 Regarding Watts Bar Integrated Inspection Report ML22353A0812022-12-15015 December 2022 NRR E-mail Capture - Acceptance Review Results for Watts Bar, Unit 2, Alternative Request WBN-2-ISI-01 Regarding Examination of Upper Head Injection Nozzle Dissimilar Metal Piping Butt Welds ML22348A0972022-12-14014 December 2022 NRR E-mail Capture - State Consultation - Browns Ferry, Units 1, 2 and 3; Sequoyah, Units 1 and 2; and Watts Bar, Units 1 and 2, License Amendment Request to Adopt TSTF-529, Revision 4 (L-2022-LLA-0088) ML22348A0442022-12-13013 December 2022 NRR E-mail Capture - State Consultation - Browns Ferry, Units 1, 2 and 3; Sequoyah, Units 1 and 2; and Watts Bar, Units 1 and 2, License Amendment Request to Adopt TSTF-554-A, Revision 1 (L-2022-LLA-0100) ML22343A0692022-12-0808 December 2022 NRR E-mail Capture - Request for Additional Information - Sequoyah Nuclear Plant, Units 1 and 2, and Watts Bar Nuclear Plant, Units 1 and 2, License Amendment Request to Revise Technical Specification 3.4.12 (L-2022-LLA-0103) ML22227A0712022-08-15015 August 2022 NRR E-mail Capture - Acceptance Review Results for Sequoyah and Watts Bar License Amendment Request to Revise TS 3.4.12 (EPID L-2022-LLA-0103) - Corrected ML22227A0262022-08-12012 August 2022 NRR E-mail Capture - Acceptance Review Results for Sequoyah and Watts Bar License Amendment Request to Revise TS 3.4.12 ML22227A0272022-08-11011 August 2022 NRR E-mail Capture - Request for Additional Information Related to Alternative Requests RP-11 for Sequoyah Nuclear Plant, Units 1 and 2, and IST-RR-9 for Watts Bar Nuclear Plant, Units 1 and 2 ML22215A2752022-08-0303 August 2022 NRR E-mail Capture - Acceptance Review Results for TVA Fleet License Amendment Request to Adopt TSTF-554 ML22194A8762022-07-13013 July 2022 NRR E-mail Capture - Acceptance Review Results for TVA Fleet License Amendment Request to Adopt TSTF-529 ML22166A4292022-06-0606 June 2022 NRR E-mail Capture - LAR to Adopt TSTF-577 ML22146A3342022-05-25025 May 2022 NRR E-mail Capture - Acceptance Review Results for Browns Ferry Nuclear Plant, Units 1, 2, and 3, Sequoyah Nuclear Plant, Units 1 and 2, and Watts Bar Nuclear Plant, Units 1 and 2, Relief Requests (EPID L-2022-LLR-0045 - 0047) ML22136A0182022-05-16016 May 2022 NRR E-mail Capture - Acceptance Review Results for Sequoyah Nuclear Plant, Units 1 and 2, Alternative Request RP-11 and Watts Bar Nuclear Plant, Units 1 and 2, Alternative Request IST-RR-9 ML22144A1002022-05-12012 May 2022 NRR E-mail Capture - Request for Additional Information Related to Tva'S Request to Revised the TVA Plants' Radiological Emergency Plans ML22123A1812022-05-0303 May 2022 NRR E-mail Capture - Acceptance Review Results for Sequoyah Nuclear Plant, Units 1 and 2, and Watts Bar Nuclear Plant, Units 1 and 2, License Amendment Request to Adopt TSTF-577 ML22115A1402022-04-25025 April 2022 NRR E-mail Capture - Requests for Confirmation of Information and Additional Information Regarding Watts Bar Nuclear Plant, Unit 2 Exemption Request Re 10 CFR Part 26 (L-2022-LLE-0017) ML22083A2372022-03-24024 March 2022 NRR E-mail Capture - Request for Additional Information and Confirmation of Information Related to Tva'S Request for Changes to Watts Bar Nuclear Plant, Units 1 and 2, Technical Specification 3.7.8 ML22081A2222022-03-22022 March 2022 NRR E-mail Capture - Acceptance Review Results for Watts Bar, Unit 1, License Amendment Request to Revise Allowable Value for TS Table 3.3.2-1, Function 6.e(1) ML22056A3802022-02-25025 February 2022 Document Request for Watts Bar Nuclear Plant - Radiation Protection Inspection - Inspection Report 2022-02 ML22131A1902022-02-23023 February 2022 NRR E-mail Capture - Acceptance Review Results for Watts Bar, Unit 2, Request to Revise the Reactor Vessel Surveillance Capsule Withdrawal Schedule ML22046A0392022-02-15015 February 2022 NRR E-mail Capture - Request for Confirmation of Information Regarding the Watts Bar Nuclear Plant, Unit 2, Cycle 4 Mid-Cycle Outage Generic Letter 95-05 Final Report ML22038A1882022-02-0404 February 2022 NRR E-mail Capture - Acceptance Review Results for TVA Fleet License Amendment Request to Revise the TVA Radiological Emergency Plan ML22018A0272022-01-18018 January 2022 2022 All RFI Responses - Exercise and Program Inspections - Revl ML22011A0382022-01-10010 January 2022 NRR E-mail Capture - Acceptance Review Results for Watts Bar, Units 1 and 2, License Amendment Request to Adopt TSTF-205-A, Rev. 3 and TSTF-563-A ML21306A2452021-11-0202 November 2021 NRR E-mail Capture - Acceptance Review Results for Watts Bar Nuclear Plant, Units 1 and 2, License Amendment Request to Revise Technical Specification 3.7.8, Essential Raw Cooling Water (ERCW) System ML21267A1392021-09-23023 September 2021 Document Request for Upcoming RP Inspection at Watts Bar ML21252A0912021-09-0909 September 2021 NRR E-mail Capture - Request for Comments on Proposed Issuance of Amendments to Watts Bar Nuclear Plant, Unit 2 - Revise Steam Generator Secondary Side Water Level ML21223A2592021-08-11011 August 2021 Affidavit - Prop Slides - Partially Closed Meeting with TVA Potential Watts Bar, Unit 2 Tube Locking LAR ML21221A2602021-08-0909 August 2021 NRR E-mail Capture - Request for Additional Information Regarding Tva'S Request to Revise Watts Bar, Unit 1 Tech Specs Related to Continuous Opening of the Auxiliary Building Secondary Containment Enclosure Boundary ML21215A1152021-07-26026 July 2021 NRR E-mail Capture - (External_Sender) Correction to WBN Chiller Replacement LAR ML21215A1142021-07-26026 July 2021 NRR E-mail Capture - (External_Sender) Correction to WBN Chiller Replacement LAR ML21197A0452021-07-15015 July 2021 WBN U1 Isi/Sgisi Request for Information (RFI) Letter ML21193A2422021-07-12012 July 2021 NRR E-mail Capture - Request for Additional Information Regarding Tva'S Request to Revise the Watts Bar Nuclear Plant, Unit 2 Technical Specifications Related to Steam Generator Inspection/Repair Program Provisions ML21189A0202021-06-29029 June 2021 NRR E-mail Capture - Acceptance Review Results for Watts Bar Nuclear Plant, Units 1 and 2, License Amendment Request to Revise Technical Specifications 3.3.6 and 3.3.7 Re Radiation Monitor Redundant Unit of Measure 2024-01-22
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Text
WBN2Public Resource From: Boyd, Desiree L [dlboyd@tva.gov]
Sent: Thursday, August 30, 2012 4:29 PM To: Epperson, Dan; Wilson, George; Poole, Justin Cc: Arent, Gordon; Hamill, Carol L; Boyd, Desiree L
Subject:
TVA letter to NRC_08-30-2012_Electronic Filter Test Results Attachments: 08-30-2012_Electronic Filter Test Results_Final.pdf Please see attached TVA letter that was sent to the NRC today.
Thank You,
~*~*~*~*~*~*~*~*~*~*~
Désireé L. Boyd WBN Unit 2 Licensing dlboyd@tva.gov 423-365-8764 1
Hearing Identifier: Watts_Bar_2_Operating_LA_Public Email Number: 736 Mail Envelope Properties (7AB41F650F76BD44B5BCAB7C0CCABFAF31D3C902)
Subject:
TVA letter to NRC_08-30-2012_Electronic Filter Test Results Sent Date: 8/30/2012 4:28:53 PM Received Date: 8/30/2012 4:28:56 PM From: Boyd, Desiree L Created By: dlboyd@tva.gov Recipients:
"Arent, Gordon" <garent@tva.gov>
Tracking Status: None "Hamill, Carol L" <clhamill@tva.gov>
Tracking Status: None "Boyd, Desiree L" <dlboyd@tva.gov>
Tracking Status: None "Epperson, Dan" <>
Tracking Status: None "Wilson, George" <George.Wilson@nrc.gov>
Tracking Status: None "Poole, Justin" <Justin.Poole@nrc.gov>
Tracking Status: None Post Office: TVANUCXVS2.main.tva.gov Files Size Date & Time MESSAGE 279 8/30/2012 4:28:56 PM 08-30-2012_Electronic Filter Test Results_Final.pdf 131367 Options Priority: Standard Return Notification: No Reply Requested: Yes Sensitivity: Normal Expiration Date:
Recipients Received:
Tennessee Valley Authority, Post Office Box 2000, Spring City, Tennessee 37381-2000 August 30, 2012 10 CFR 50.4(b)(6) 10 CFR 50.34(b)
U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Watts Bar Nuclear Plant, Unit 2 NRC Docket No. 50-391
Subject:
Watts Bar Nuclear Plant (WBN) Unit 2 - Instrumentation and Controls Staff Request for Additional Information (RAI) Related to Supplemental Safety Evaluation Report (SSER) Open Item 80
References:
- 1. TVA to NRC letter dated April 23, 2012, Watts Bar Nuclear Plant (WBN) Unit 2 - Instrumentation and Controls Staff Information Requests
- 2. TVA to NRC letter dated December 22, 2011, Watts Bar Nuclear Plant (WBN) Unit 2 - Instrumentation and Controls Staff Information Requests
- 3. TVA to NRC letter April 15, 2011, Watts Bar Nuclear Plant (WBN)
Unit 2 - Instrumentation and Controls Staff Information Requests
- 4. NRC to TVA letter dated November 18, 2011, Watts Bar Nuclear Plant, Unit 2 - Request for Additional Information Regarding Supplemental Safety Evaluation Report Open Items 80, 81, 94,105, and 108 (TAC NO. ME0853) (ML113130218)
The purpose of this letter is to respond to a commitment made in Reference 1 to perform current to frequency (I/F) testing of an I/F converter in a radiation monitoring device supplied by General Atomics Electronics Systems Inc. (GA-ESI). Enclosure 1 provides additional information to the NRC follow-up question, which was the source for this commitment. Enclosure 2 provides the new regulatory commitment.
U.S. Nuclear Regulatory Commission Page 3 August 30, 2012 bcc (Enclosures):
George Wilson U.S. Nuclear Regulatory Commission MS 8 B1A One White Flint North 11555 Rockville Pike Rockville, Maryland 20852-2738 Fred Brown, Deputy Regional Administrator for Construction U. S. Nuclear Regulatory Commission Region II Marquis One Tower 245 Peachtree Center Ave., NE Suite 1200 Atlanta, Georgia 30303-1257
Enclosure 1 TVA Letter Dated August 30, 2012 TVA Responses to Instrumentation and Controls Staff Information Requests NRC Follow-up Request (SSER 23 Appendix HH Item Number 80)
(NRC to TVA via e-mail dated March 20, 2012)
NRC Staff has reviewed this GA-ESI document 04038800-1SP and 04508905-2SP (referenced in 04038800-1SP and submitted via ML110620236) documents. These documents explain the similarities and differences in the old I/F converter and the new I/F converter model (GA-ESI P/N 04501351-003). It also explains some of the improvements related to shielding for better EMC protection. However, there is no test data or analysis provided to support the missing frequency range (i.e. 50 kHz to 150 kHz). In the NRC letter to TVA dated September 21, 2011 (ML112590046) NRC staff explained that both the Regulatory Guide 1.180, Rev. 1 and MIL Std 461-E require the test range from 30 Hz to 150 kHz for low frequency susceptibility test. Therefore, TVA is requested to provide test data for closing this item. If majority of the components have already been tested under some other similar tests for the required frequency range, then an analysis with justification for the differences may be provided as an alternate.
TVA Response to NRC Follow-up Request The previous response to this item in the April 23, 2012, TVA letter was based on an incorrect understanding of the requirements of Regulatory Guide 1.180, Rev. 1, and the question being asked. The following is the revised response to this question.
Regulatory Guide 1.180, Revision 1, requires EMC low frequency conducted susceptibility testing be performed in accordance with MIL-STD-461E which requires testing from 30 Hz to 150 kHz for DC supplied equipment and from the second harmonic 120 Hz (for 60 Hz equipment) to 150 kHz for AC supplied equipment. The GA-ESI RM-1000 monitors used in WBN Unit 2 (with I/F converters) are AC supplied; therefore, the conducted susceptibility testing lower limit is 120 Hz.
GA-ESI performed low frequency conducted susceptibility testing for the I/F converter as part of RM-1000 testing performed in 1999. The documented test range is 100 Hz to 150 kHz. The GA-ESI proprietary test report, 04038800, dated November 11, 1999, RM-1000 EMC Test Report, TVA, containing this information was provided as part of , Browns Ferry High Range Radiation Monitor, of TVA to NRC letter dated April 15, 2011. The specific location of the test data is, Appendix B, TV Test Report 58569-02, dated December 11, 1998, RM-1000 Radiation Monitor Two Channel, page TD8 of TD34 or page 273 of the overall attachment.
The testing was performed in accordance with MIL-STD-461D while Regulatory Guide 1.180 Revision 1 requires testing to Revision E. TVA has reviewed the data against the requirements of MIL-STD-461E and confirms that the test meets the current requirements. The applicability of this testing to the current I/F converter is documented in 04038800-1SP, RM-1000 EMC Test Report Supplement 1, Revision A, submitted as 5 on TVA to NRC letter dated November 30, 2011.
E1-1
Enclosure 1 TVA Letter Dated August 30, 2012 TVA Responses to Instrumentation and Controls Staff Information Requests The confusion over this issue stems from incorrect information contained in 04038800-1SP on page 29. The Conducted Susceptibility table entry states:
Low Frequencies (Power Conductors Only) x Frequency: 30 Hz to 50 kHz x Amplitude: 6.3 volts rms average x Alternate procedures MIL-STD-461C (CS-01, CS-02, and RS-02 Part II Class A3) or MILSTD-461D (CS-101)
However, TV Test Report 58569-02 shows that the low frequency conducted susceptibility testing was actually performed from 100 Hz to 150 kHz which envelopes the MIL-STD-461E required test range of 120 Hz to 150 kHz.
A review of the April 15, 2011 letter found that it stated proprietary and non-proprietary versions of 04038800 along with an affidavit for withholding would be provided.
However, this information was not included in the letter commitments and these documents were not submitted. A new commitment to submit these documents is included in this letter.
This completes the response to this request.
E1-2
Enclosure 2 New Regulatory Commitment Proprietary and non-proprietary versions of GA-ESI document GA-ESI test report, 04038800, dated November 11, 1999, RM-1000 EMC Test Report, TVA, along with an affidavit for withholding will be provided within three weeks of receipt from GA-ESI.
E2-1