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Category:Letter
MONTHYEARML24032A0202024-01-31031 January 2024
NPDES Biocide/Corrosion Treatment Plan Annual Report, Cy 2023
ML23319A2452024-01-29029 January 2024
Issuance of Amendment Nos. 366 and 360; 164 and 71 Regarding the Adoption of TSTF-567, Revision 1, Add Containment Sump TS to Address GSI-191 Issues
CNL-24-017, Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure and Emergency Preparedness Department Procedure Revisions2024-01-17017 January 2024
Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure and Emergency Preparedness Department Procedure Revisions
ML24018A0142024-01-17017 January 2024
Engine Systems, Inc., Report No. 10CFR21-0137, Rev. 1, 56913-EN 56913
ML24011A3182024-01-11011 January 2024
Submittal of Discharge Monitoring Report (Dmr), October 2023
ML24011A3172024-01-11011 January 2024
Submittal of Discharge Monitoring Report (Dmr), September 2023
ML24011A3202024-01-11011 January 2024
Submittal of Discharge Monitoring Report (Dmr), December 2023
ML24011A3162024-01-11011 January 2024
Submittal of Discharge Monitoring Report (Dmr), August 2023
ML24011A3192024-01-11011 January 2024
Submittal of Discharge Monitoring Report (Dmr), November 2023
IR 05000327/20234422024-01-11011 January 2024
95001 Supplemental Inspection Report 05000327/2023442 and 05000328/2023442 and Follow-Up Assessment Letter
ML24010A2132024-01-10010 January 2024
CFR 21.21 Final Report Regarding Siemens Medium Voltage Circuit Breakers
ML24018A0952024-01-0404 January 2024
Engine Systems, Inc., 10CFR21 Reporting of Defects and Non-Compliance Report No. 10CFR21-0137, Rev. 0
ML24004A0332024-01-0303 January 2024
Interim Report of a Deviation or Failure to Comply Crompton Instruments Type 077 Ammeter
ML24004A0402024-01-0303 January 2024
Response to NRCs November 8, 2023, Request for Additional Information - Related to Independent Spent Fuel Storage Installation
CNL-23-068, Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation2023-12-21021 December 2023
Request for Exemption from Enhanced Weapons, Firearms Background Checks, and Security Event Notifications Implementation
CNL-23-036, Application to Revise Function 5 of Technical Specification Table 3.3.2-1, Engineered Safety Feature Actuation System Instrumentation, for the Sequoyah Nuclear Plant and Watts Bar Nuclear Plant (SQN-TS-23-02 and WBN-TS-23-08)2023-12-18018 December 2023
Application to Revise Function 5 of Technical Specification Table 3.3.2-1, Engineered Safety Feature Actuation System Instrumentation, for the Sequoyah Nuclear Plant and Watts Bar Nuclear Plant (SQN-TS-23-02 and WBN-TS-23-08)
ML23346A1222023-12-12012 December 2023
Annual Non-Radiological Environmental Operating Report - 2023
IR 05000327/20234202023-11-28028 November 2023
Security Baseline Inspection Report 05000327/2023420 and 05000328/2023420
CNL-23-067, Central Emergency Control Center Emergency Plan Implementing Procedure Revisions2023-11-27027 November 2023
Central Emergency Control Center Emergency Plan Implementing Procedure Revisions
ML23324A4362023-11-0909 November 2023
Exam Corporate Notification Letter Aka 210-day Letter
ML23307A0822023-11-0808 November 2023
Request for Additional Information August 4, 2022, Exemption Request for Deviating from the Conditions of Certificate of Compliance No. 1032, Amendment No. 3, Related to Sequoyah Nuclear Plant Independent Spent Fuel Storage Installation
IR 05000327/20230032023-11-0303 November 2023
Integrated Inspection Report 05000327/2023003 and 05000328/2023003
ML23306A1592023-11-0202 November 2023
Enforcement Action EA-22-129 Inspection Readiness Notification
ML23292A0792023-10-19019 October 2023
Tennessee Valley Authority - Emergency Plan Implementing Procedure Revision, Includes EPIP-5, Revision 58, General Emergency
IR 05000327/20230112023-10-16016 October 2023
Triennial Fire Protection Inspection Report 05000327/2023011 and 05000328/2023011
ML23285A0882023-10-12012 October 2023
Submittal of Sequoyah Nuclear Plant, Units 1 and 2, Submittal of Updated Final Safety Analysis Report Amendment 31
ML23284A4252023-10-11011 October 2023
10 CFR 50.59 and 10 CFR 72.48 Changes, Tests, and Experiments Summary Report; Commitment Summary Report; and Update to the Fire Protection Report
ML23283A2792023-10-10010 October 2023
Revisions to the Sequoyah Nuclear Plant Units 1 and 2 Technical Requirements Manual
ML23279A0612023-10-0505 October 2023
Paragon Energy Solutions LLC, Part 21 Final Report Re Potential Defect with Eaton Jd and Hjd Series Molded Case Circuit Breakers (Mccbs)
ML23277A0462023-10-0404 October 2023
Revisions to the Sequoyah Nuclear Plant Units 1 and 2 Technical Specification Bases
ML23275A0272023-09-29029 September 2023
Submittal of Discharge Monitoring Report (DMR) Quality Assurance Study 43 Final Report 2023
ML23271A1662023-09-28028 September 2023
Registration of Spent Fuel Storage Cask Pursuant to 10 CFR 72.212(b)(2)
CNL-23-059, Supplement to Sequoyah Nuclear Plant, Units 1 and 2, and Watts Bar Nuclear Plant, Units 1 and 2, Application to Revise Technical Specifications to Adopt TSTF-567-A, Revision 1, Add Containment Sump TS to Address GSI-191 Issues (SQN-TS-23-2023-09-20020 September 2023
Supplement to Sequoyah Nuclear Plant, Units 1 and 2, and Watts Bar Nuclear Plant, Units 1 and 2, Application to Revise Technical Specifications to Adopt TSTF-567-A, Revision 1, Add Containment Sump TS to Address GSI-191 Issues (SQN-TS-23-03
CNL-23-061, Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure Revision2023-09-20020 September 2023
Tennessee Valley Authority - Central Emergency Control Center Emergency Plan Implementing Procedure Revision
IR 05000327/20234032023-09-14014 September 2023
Cyber Security Inspection Report 05000327/2023403 and 05000328/2023403 (Cover Letter)
ML23257A0062023-09-14014 September 2023
Enforcement Action EA-22-129 Inspection Postponement Request
ML23254A2192023-09-11011 September 2023
Emergency Plan Implementing Procedure Revisions
ML23254A0652023-09-0707 September 2023
Registration of Spent Fuel Storage Cask Pursuant to 10 CFR 72.212(b)(2)
CNL-23-057, Central Emergency Control Center Emergency Plan Implementing Procedure Revisions. Includes CECC-EPIP-1, Revision 76 and CECC-EPIP-9, Revision 642023-09-0505 September 2023
Central Emergency Control Center Emergency Plan Implementing Procedure Revisions. Includes CECC-EPIP-1, Revision 76 and CECC-EPIP-9, Revision 64
IR 05000327/20230052023-08-29029 August 2023
Updated Inspection Plan for Sequoyah Nuclear Plant, Units 1 and 2 - Report 05000327/2023005 and 05000328/2023005
ML23233A0122023-08-17017 August 2023
Unit 1 Cycle 25 Refueling Outage - 90-Day Inservice Inspection Summary Report - Supplement
ML23233A0142023-08-15015 August 2023
Discharge Monitoring Report (Dmr), July 2023
ML23215A1212023-08-0303 August 2023
301 Exam Administrative Items (2B) Normal Release
ML23215A1572023-08-0303 August 2023
Enforcement Action EA-22-129 Inspection Readiness Notification
CNL-23-028, Application to Revise Technical Specifications to Adopt TSTF-567-A, Revision 1, Add Containment Sump TS to Address GSI-191 Issues (SQN-TS-23-03 and WBN-TS-23-06)2023-08-0202 August 2023
Application to Revise Technical Specifications to Adopt TSTF-567-A, Revision 1, Add Containment Sump TS to Address GSI-191 Issues (SQN-TS-23-03 and WBN-TS-23-06)
ML23192A4472023-07-31031 July 2023
Staff Assessment of Updated Seismic Hazards at TVA Sites Following the NRC Process for the Ongoing Assessment of Natural Hazards Information
2024-01-04
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Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 JUly 27, 2010 Mr. Rodney M. Krich Vice President, Nuclear Licensing Tennessee Valley Authority 3R Lookout Place 1101 Market Street Chattanooga, TN 37402-2801
SUBJECT:
SEOUOYAH NUCLEAR PLANT, UNITS 1 AND 2 - EMERGENCY DIESEL GENERATOR FUEL OIL - ALTERNATE SAMPLING PROCEDURE OF STORAGE TANKS (TAC NOS. ME3439 AND ME3440)
Dear Mr. Krich:
By letter dated February 24, 2010, as supplemented by letter dated May 13, 2010, Tennessee Valley Authority (TVA or the licensee) submitted a request to use an alternative sampling procedure for the emergency diesel generator (EDG) fuel oil storage tanks for Sequoyah Nuclear Plant (SON), Units 1 and 2.
The requirement to sample the diesel fuel oil storage tanks comes from Technical Specification (TS) Surveillance Requirement 4.8.1.1.2.c, which states that, "At a frequency in accordance with the Diesel Fuel Oil Testing Program, verify fuel oil properties of new and stored fuel oil are tested in accordance with, and maintained within the limits specified in the Diesel Fuel Oil Testing Program." TS Section 6.16, "Diesel Fuel Oil Testing Program," requires that sampling and testing of new and stored fuel be performed in accordance with applicable American Society for Testing Materials (ASTM) standards. Historically, TVA has performed a manual "all-levels" sample in accordance with Section 8 of ASTM D4057-1988, "Standard Practice for Manual Sampling of Petroleum and Petroleum Products." However, Section 8.1 of ASTM D4057-1988 specifies that alternate sampling methods may be used with agreement of the parties involved.
TVA determined that U. S. Nuclear Regulatory Commission (NRC) staff approval of the alternative sampling methods was necessary to satisfy the criteria of ASTM D4057-1988; there is no change to the TSs or its bases.
The "all-levels" sample from ASTM D4057-1988 draws a sample that is representative of the entire tank, by opening an empty specialized container near the bottom of the fuel oil storage tanks and drawing the container upward to the top of the tank as it fills. Instead of this process, TVA proposed to take samples from the fuel oil transfer pump discharge lines of each fuel oil storage tank. The transfer pumps take suction near the bottom of their respective tanks through a 4-inch diameter line. There is a 1-inch diameter line and valve off each discharge line that will be used as the sample point. To obtain a fuel oil sample, TVA proposed that the fuel oil transfer pump for the tank to be sampled will be placed in the recirculation mode for a period of time necessary to ensure a one-volume recirculation of the contents, based on the volume of diesel fuel in the tank. After the tank has been recirculated for the appropriate time, TVA proposed that the sample line will be flushed and a sample obtained. The fuel oil sample will be analyzed in accordance with existing TS requirements.
R. Krich -2 To show that the new sampling procedure would provide results that were representative of the fuel oil contained in the tanks and equivalent to the existing procedure, the licensee collected samples using the existing "all-levels" method, and the new proposed method, from Fuel Oil Storage Tanks 1 and 2 for a period of 3 months. The sampies were then tested with the same procedures and the results were provided in the enclosure of TVA letter dated February 24, 2010. The NRC staff reviewed the proposed sampling process and the test results comparison provided in the enclosure of TVA letter dated February 24, 2010. Based on the comparison of the sampling methods and test results, the NRC staff finds that the proposed sampling method provides an equivalent sample of the fuel oil storage tank contents as the "all-levels" sampling method in ASTM 04057-1988.
Based on the NRC staff review of the TVA request, the NRC staff finds the alternative sampling technique for SON, Units 1 and 2 EDG fuel oil storage tanks acceptable. Pursuant to ASTM 04057-1988, Section 8.1, TVA is authorized to obtain samples from the fuel oil transfer pump discharge lines of each EDG storage tank by the described process in lieu of specific methods described in applicable ASTM standards.
If you have any questions regarding this matter, please contact Siva P. Lingam at 301-415-1564.
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Douglas A. Broaddus. Chief Plant Licensing Branch 11-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-327 and 50-328 cc: Distribution via Listserv
R. Krich -2 To show that the new sampling procedure would provide results that were representative of the fuel oil contained in the tanks and equivalent to the existing procedure, the licensee collected samples using the existing "all-levels" method, and the new proposed method, from Fuel Oil Storage Tanks 1 and 2 for a period of 3 months. The samples were then tested with the same procedures and the results were provided in the enclosure of TVA letter dated February 24, 2010. The NRC staff reviewed the proposed sampling process and the test results comparison provided in the enclosure of TVA letter dated February 24, 2010. Based on the comparison of the sampling methods and test results, the NRC staff finds that the proposed sampling method provides an equivalent sample of the fuel oil storage tank contents as the "all-levels" sampling method in ASTM D4057-1988.
Based on the NRC staff review of the TVA request, the NRC staff finds the alternative sampling technique for SON, Units 1 and 2 EDG fuel oil storage tanks acceptable. Pursuant to ASTM D4057-1988, Section 8.1, TVA is authorized to obtain samples from the fuel oil transfer pump discharge lines of each EDG storage tank by the described process in lieu of specific methods described in applicable ASTM standards.
If you have any questions regarding this matter, please contact Siva P. Lingam at 301-415-1564.
Sincerely, IRA BMozafari forI Douglas A. Broaddus, Chief Plant Licensing Branch 11-2 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-327 and 50-328 cc: Distribution via Listserv DISTRIBUTION:
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