CNL-16-102, Thirteenth Progress Update on Improved Flood Mitigation System Project
| ML16182A531 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar, Sequoyah  |
| Issue date: | 06/30/2016 |
| From: | James Shea Tennessee Valley Authority |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| CNL-16-102 | |
| Download: ML16182A531 (3) | |
Text
Tennessee Valley Authority, 1101 Market Street, Chattanooga, Tennessee 37402CNL-16-102 June 30, 2016 10 CFR 50.4 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Sequoyah Nuclear Plant, Units 1 and 2 Renewed Facility Operating License Nos. DPR-77 and DPR-79 NRC Docket Nos. 50-327 and 50-328 Watts Bar Nuclear Plant, Units 1 and 2 Facility Operating License Nos. NPF-90 and NPF-96 NRC Docket Nos. 50-390 and 50-391
Subject:
THIRTEENTHPROGRESS UPDATE ON IMPROVED FLOOD MITIGATION SYSTEM PROJECT
References:
- 1. Letter from TVA to NRC, "Commitment to Install Improved Flood Mitigation Systems," dated April 16, 2013 (ML13108A107)
- 2. Letter from TVA to NRC, "Progress Update on Improved Flood Mitigation System Project," dated July 1, 2013 (ML13189A135) By letter dated April 16, 2013, Tennessee Valley Authority (TVA) committed to install improved flood mitigation systems at the Sequoyah Nuclear Power Plant (SQN), Units 1 and 2, and the Watts Bar Nuclear Plant (WBN), Units 1 and 2 (Reference 1). TVA committed to complete implementation of the improved flood mitigation systems at SQN and WBN by December 31, 2016. TVA also committed to provide periodic written updates regarding the progress of the project. The most recent update was in the letter from TVA to NRC dated March 31, 2016 (ML16102A304). The purpose of this letter is to provide the thirteenth written update regarding the progress of the improved flood mitigation system project consistent with Commitment 2 in Enclosure 2 of the Reference 1 letter and Commitment 1 in Enclosure 2 of the Reference 2 letter.
U.S. Nuclear Regulatory Commission CNL-16-102
Page 2 June 30, 2016 During a June 27, 2013 public meeting and in the first update (Reference 2), TVA advised the NRC that engineering design and project controls for the project were being developed consistent with TVA's existing design and project management procedures. The Project Status Schedule, provided in Table 1 of this letter, lists the major tasks associated with the design and project controls developed to implement the flood mitigation system. Table 1 is used to provide the overall status of the improved flood mitigation system project each quarter. The status of the Table 1 tasks from March 20, 2015 to June 24, 2016 is provided below. Task 5, Conduct Engineering Design Phase - Complete. The WBN and SQN designs have been issued. Task 7, Implementation - Revised scheduled start date from 05/23/16 to 07/18/16, due to delays in Engineering Design deliverables. No impact to the Task 7 scheduled finish date. Overall, the project remains on schedule to complete by December 15, 2016. TABLE 1 PROJECT STATUS SCHEDULE (updates shown in bold text)
Task Scheduled Start Scheduled Finish Status 1Team Organization Structure 05/29/13Complete 2Develop Project Plan 10/30/13Complete 3Perform Conceptual Design Phase 10/30/13Complete 4Perform Preliminary Design Phase 04/30/14Complete 5Conduct Engineering Design Phase 05/01/14 06/23/16 Complete 6 Procure Long-Lead Items 11/01/14 10/21/15Complete 7Implementation 07/18/16 12/15/16 Not Started
Tennessee Valley Authority, 1101 Market Street, Chattanooga, Tennessee 37402CNL-16-102 June 30, 2016 10 CFR 50.4 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Sequoyah Nuclear Plant, Units 1 and 2 Renewed Facility Operating License Nos. DPR-77 and DPR-79 NRC Docket Nos. 50-327 and 50-328 Watts Bar Nuclear Plant, Units 1 and 2 Facility Operating License Nos. NPF-90 and NPF-96 NRC Docket Nos. 50-390 and 50-391
Subject:
THIRTEENTHPROGRESS UPDATE ON IMPROVED FLOOD MITIGATION SYSTEM PROJECT
References:
- 1. Letter from TVA to NRC, "Commitment to Install Improved Flood Mitigation Systems," dated April 16, 2013 (ML13108A107)
- 2. Letter from TVA to NRC, "Progress Update on Improved Flood Mitigation System Project," dated July 1, 2013 (ML13189A135) By letter dated April 16, 2013, Tennessee Valley Authority (TVA) committed to install improved flood mitigation systems at the Sequoyah Nuclear Power Plant (SQN), Units 1 and 2, and the Watts Bar Nuclear Plant (WBN), Units 1 and 2 (Reference 1). TVA committed to complete implementation of the improved flood mitigation systems at SQN and WBN by December 31, 2016. TVA also committed to provide periodic written updates regarding the progress of the project. The most recent update was in the letter from TVA to NRC dated March 31, 2016 (ML16102A304). The purpose of this letter is to provide the thirteenth written update regarding the progress of the improved flood mitigation system project consistent with Commitment 2 in Enclosure 2 of the Reference 1 letter and Commitment 1 in Enclosure 2 of the Reference 2 letter.
U.S. Nuclear Regulatory Commission CNL-16-102
Page 2 June 30, 2016 During a June 27, 2013 public meeting and in the first update (Reference 2), TVA advised the NRC that engineering design and project controls for the project were being developed consistent with TVA's existing design and project management procedures. The Project Status Schedule, provided in Table 1 of this letter, lists the major tasks associated with the design and project controls developed to implement the flood mitigation system. Table 1 is used to provide the overall status of the improved flood mitigation system project each quarter. The status of the Table 1 tasks from March 20, 2015 to June 24, 2016 is provided below. Task 5, Conduct Engineering Design Phase - Complete. The WBN and SQN designs have been issued. Task 7, Implementation - Revised scheduled start date from 05/23/16 to 07/18/16, due to delays in Engineering Design deliverables. No impact to the Task 7 scheduled finish date. Overall, the project remains on schedule to complete by December 15, 2016. TABLE 1 PROJECT STATUS SCHEDULE (updates shown in bold text)
Task Scheduled Start Scheduled Finish Status 1Team Organization Structure 05/29/13Complete 2Develop Project Plan 10/30/13Complete 3Perform Conceptual Design Phase 10/30/13Complete 4Perform Preliminary Design Phase 04/30/14Complete 5Conduct Engineering Design Phase 05/01/14 06/23/16 Complete 6 Procure Long-Lead Items 11/01/14 10/21/15Complete 7Implementation 07/18/16 12/15/16 Not Started