LR-N14-0092, Response to RAI 37 - Relief Request SC-I4R-133, Alternative Repair for Service Water System Piping

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Response to RAI 37 - Relief Request SC-I4R-133, Alternative Repair for Service Water System Piping
ML14085A482
Person / Time
Site: Salem  PSEG icon.png
Issue date: 03/26/2014
From: Duke P
Public Service Enterprise Group
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
LR-N14-0092
Download: ML14085A482 (4)


Text

PSEG Nuclear LLC P.O. Box 236, Hancocks Bridge, NJ 08038-0236 PSG NuclearLLC MAR 26 2014 10 CFR 50.55a LR-N 14-0092 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001

Subject:

References:

Salem Generating Station, Units 1 and 2 Renewed Facility Operating License Nos. DPR-70 and DPR-75 NRC Docket Nos. 50-272 and 50-311 Response to Request for Additional Information (RAJ 37) - Relief Request SC-14R-133, Alternative Repair for Service Water System Piping

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(5)

PSEG letter LR-N13-0064, "Request for Relief from ASME Code Defect Removal for Service Water Buried Piping," dated April 3, 2013, ADAMS Accession No. ML13093A382 PSEG letter LR-N13-0171, "Response to Request for Additional Information - Relief Request SC-14R-133, Alternative Repair for Service Water System Piping," dated August 15, 2013, ADAMS Accession No. ML13227A338 PSEG letter LR-N13-0302, "Response to Request for Additional Information (RAI 31 and RAI 32)- Relief Request SC-14R-133, Alternative Repair for Service Water System Piping," dated January 8, 2014, ADAMS Accession No. ML14016A123 PSEG letter LR-N14-0047, "Response to Request for Additional Information (RAI 33 - 36)- Relief Request SC-14R-133, Alternative Repair for Service Water System Piping," dated February 27, 2014, ADAMS Accession No. ML14058A228 NRC email to PSEG, "Request For Additional Information: Salem Units 1 and 2 - Relief Request SC-14R-133 Repair of Service Water piping (TAC MF1375 & 1376)," dated March 20, 2014 In Reference 1, as supplemented by References 2, 3, and 4, PSEG Nuclear LLC (PSEG) requested NRC approval of proposed relief request SC-14R-133 for Salem Generating Station, Units 1 and 2. The proposed relief will allow PSEG to repair bell and spigot joints in the buried portions of Service Water System piping in lieu of defect removal requirements in ASME Section XI, IWA 4422.1.

MAR 2'6 2014 Page 2 LR-N 14-0092 10 CFR 50.55a In Reference 5, the NRC staff provided PSEG with a Request for Additional Information (RAI). to this submittal provides the responses to the RAI.

There are no commitments contained in this letter.

If you have any questions or require additional information, please do not hesitate to contact Mr.

Brian Thomas at 856-339-2022.

Sincerely,

::

kfY Manager - Licensing - Response to Request for Additional Information, RAI 37 cc:

Mr. W. Dean, Administrator, Region I, NRC Mr. J. Hughey, Project Manager, NRC NRC Senior Resident Inspector, Salem Mr. P. Mulligan, Manager IV, NJBNE Mr. L. Marabella, Corporate Commitment Tracking Coordinator Mr. T. Cachaza, Salem Commitment Tracking Coordinator

LR-N 14-0092 Response to Request for Additional Information, RAI 37

LR-N 14-0092

RAI 37

The proposed alternative addresses the repair of degraded joints in buried pre-stressed concrete cylinder pipe. The alternative is not specific as to whether it covers degraded joints which are leaking, when harness bolts are relied upon for carrying axial loads. The NRC staff has, therefore, evaluated the alternative based on both non-leaking and leaking conditions. The NRC staff has found that the proposed alternative contains sufficient information applicable to the corrosion rate of the harness bolting exposed to ground water to evaluate the non through wall leak condition. The NRC staff finds that sufficient information applicable to the corrosion rate of the harness bolting exposed to brackish or salt water, as would be contained in the subject pipe, to fully evaluate the leaking condition is not provided in the proposed alternative.

The NRC staff believes that this issue may be resolved by either limiting the use of the proposed alternative to instances where through wall leaks do not exist or through inspection of the harness bolting.

Therefore, as a condition to the proposed alternative, under the conditions described, i.e., through wall leak in which harness bolts are relied upon for carrying axial loads, it will be necessary for the licensee to visually inspect as much of the harness bolts as may have been affected by the raw water leaking from the pipe.

Please indicate your understanding of the proposed condition and your desires concerning the resolution of this issue.

PSEG Response to RAI 37:

PSEG understands and accepts the proposed condition.

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