ML090540556
| ML090540556 | |
| Person / Time | |
|---|---|
| Site: | Indian Point  |
| Issue date: | 11/22/2005 |
| From: | - No Known Affiliation |
| To: | NRC Region 1 |
| References | |
| Download: ML090540556 (2) | |
Text
94-06 Corrective Actions Summarized Status (February 2008)
- 1.
Complete unit 1 roof repair efforts, namely the dome slab caulked joints, which are still leaking.
Status: The roof slab joints were caulked in 2006 by the Unit 1 Project team as part of our SAFSTOR project.
- 2.
Continue efforts to identify the source of pool leakage on the 33' annulus floor Status: complete. When the transfer canal and water storage pool were drained the leakage to the 33' annulus floor stopped.
- 3.
Clear path from annulus sand moat to sphere foundation drain to allow dewatering.
Status: not complete. The work was cancelled order to drain the sand cushion to the SFDS when low level PCBs were discovered in the annulus sand cushion area.
- 4.
Attempt to identify source of water intrusion into the annulus sand moat.
Status: complete. Water in the annulus sand moat is believed to originate from the roof leaks and the occasional overflow of the NCD annulus moat to the sand moat.
- 5.
Implement Temporary Operating Instruction 199 for Spent Fuel pool cooling.
Status:' this was not completed. Decay heat from the current Unit 1 pool inventory does not required heat removal beyond natural circulation.
- 6.
Develop a program for long term pool water level monitoring.
Status: complete. A pool level monitoring system was installed in 1996 and is currently in use for-pool water level monitoring.
- 7.
Permanently re route the SFD sump discharge.
Status: complete. The discharge was re routed from the unit 3 storm drain system to the current Unit 1 discharge in 1996.
- 8.
Permanently re route the NCD drain path.
Status: complete. The NCD discharge was re routed into the annulus moat in 1994.
9.*
Perform structural integrity evaluation of spent fuel pool walls.
Status: this evaluation was performed in 2002. Evaluation results did not reveal any significant degradation of the pool walls.
94-06 Corrective Actions Summarized Status (February 2008)
- 10. Complete studies for in. situ dry fuel storage.
Status: complete. In situ dry storage was an option studied by the Unit 1 project team in 2004.
- 11.
Formalize a program and continue monitoring the SFD and NCD flow rates and activities.
Status: complete. A formal, proceduralized program is in place to monitor flow and activity from the SFD and the NCD.
- 12.
Install permanent plug in the annulus drain to sphere spray sump line.
Status: complete. 1996 modification installed these plugs.
- 13. Evaluate methods for permanent isolation of the fuel transfer canal and failed fuel pool from the other pools.
Status: complete. The transfer canal and the failed fuel pool are currently isolated from the other pools.
- 14. Develop PM/test requirements for the Presray gate seals and instrument air system.
Status: There was a plan to have a PM task to replace the seals on the Unit 1 m6dified Presray gates every 5 years (similar to Unit 2). A decision was made subsequently not to change the seals because it would require all six pools to be filled to allow the gates to be removed. Filling the pools would generate approximately 350,000 gallons of waste water and increase pool leakage. The gates that were installed have a double seal surface for redundancy.
- 15. Decontaminate areas in annulus and CSB that were impacted by pool leakage.
Status: complete. Areas decontaminated.
- 16. Complete the dewatering and de-sludging of the water storage pool.
Status: complete. The pools were dewatered and desludged in 1998/9
- 17. Initiate cleanup of the east/west storage pools.
Status: the east pool has been emptied and cleaned. The west pool will be emptied and cleaned in 4Q08 after fuel is removed to dry storage.
- 18. Include periodic sampling of the stream situated south of site and site storm drains into Environmental Monitoring Program.