CNL-15-066, Eighth Progress Update on Improved Flood Mitigation System Project
| ML15103A302 | |
| Person / Time | |
|---|---|
| Site: | Watts Bar, Sequoyah  |
| Issue date: | 03/30/2015 |
| From: | James Shea Tennessee Valley Authority |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| CNL-15-066, L44 150330 002 | |
| Download: ML15103A302 (3) | |
Text
Tennessee Valley Authority, 1101 Market Street, Chattanooga, Tennessee 37402 CNL-15-066 March 30, 2015 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, D.C. 20555-0001 Sequoyah Nuclear Plant, Units 1 and 2 Facility Operating Licenses Nos. DPR-77 and DPR-79 NRC Docket Nos. 50-327 and 50-328 Watts Bar Nuclear Plant, Unit 1 Facility Operating License No. NPF-90 NRC Docket No. 50-390 Watts Bar Nuclear Plant, Unit 2 Construction Permit No. CPPR-92 NRC Docket No. 50-391 10 CFR 50.4
Subject:
Eighth Progress Update on Improved Flood Mitigation System Project
References:
- 1. Letter from TVA to NRC, "Commitment to Install Improved Flood Mitigation Systems," dated April16, 2013 (ML13108A107)
- 2. Letter from TVA to NRC, "Progress Update on Improved Flood Mitigation System Project," dated July 1, 2013 (ML13189A135)
By letter dated April16, 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 a letter from TVA to NRC dated December 13, 2014 (ML 135151A525).
The purpose of this letter is to provide the eighth 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 1 of the Reference 2 letter.
L44 150330 002
U.S. Nuclear Regulatory Commission CNL-15-066 Page 2 March 30, 2015 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 December 12, 2014, to March 20, 2015 is provided below.
Task 5, Conduct Engineering Design Phase-continues in-progress, however the scheduled finish date is revised from 04/30/15 to 07/31/15. This revised scheduled finish date is due to delays in receiving vendor information to support the system design.
Task 6, Procure Long-Lead Items-continues in-progress and is on schedule to finish as indicated in Table 1.
Task 7, Implementation-revised scheduled start date from 05/01/15 to 08/03/15, due to predecessor Task 5 revised scheduled finish date. No impact to the Task 7 scheduled finish date.
Overall, the project remains on schedule to complete by December 15, 2016.
1 2
3 4
5 6
7 TABLE 1 PROJECT STATUS SCHEDULE (updates shown in bold text)
Task Team Organization Structure Develop Project Plan Perform Conceptual Design Phase Perform Preliminary Design Phase Conduct Engineering Design Phase Procure Long-Lead Items Implementation Scheduled Start 05/01/14 11/01/14 08/03/15 Scheduled Finish 05/29/13 10/30/13 10/30/13 04/30/14 07/31/15 10/21/15 12/15/16 Status Complete Complete Complete Complete In-Progress In-Progress Not Started
U.S. Nuclear Regulatory Commission CNL-15-066 Page 3 March 30, 2015 TVA will provide the ninth quarterly written progress update regarding the improved flood mitigation system project by June 30, 2015, consistent with Commitment 2 in Enclosure 2 of TVA's letter to NRC dated April16, 2013 (Reference 1).
There are no new regulatory commitments contained in this letter.
If you have questions regarding this update, please contact Beth Wetzel at (423) 751-2403.
J.
hea cc:
resident, Nuclear Licensing NRR Director-NRC Headquarters NRC Regional Administrator-Region II NRC Senior Resident Inspector - Sequoyah Nuclear Plant NRC Senior Resident Inspector-Watts Bar Nuclear Plant NRR Project Manager-Sequoyah Nuclear Plant NRR Project Manager-Watts Bar Nuclear Plant, Unit 1 NRR Project Manager -Watts Bar Nuclear Plant, Unit 2