ML15321A011
| ML15321A011 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 11/10/2015 |
| From: | Mark D. Sartain Dominion Nuclear Connecticut |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 15-498 | |
| Download: ML15321A011 (4) | |
Text
Dominion Nuclear Connecticut, Inc.
i'~
nnin 50 Dominonoulevard, Glen Ale, VADo23060 Web Address: www.dom.com November 10, 2015 U.S. Nuclear Regulatory Commission Serial No.15-498 Attention: Document Control Desk NLOSANDC RO Washington, DC 20555 Docket No.
50-423 License No. NPF-49 DOMINION NUCLEAR CONNECTICUT. INC.
MILLSTONE POWER STATION UNIT 3 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING ASME SECTION XI INSERVICE INSPECTION PROGRAM RELIEF REQUESTS FOR LIMITED COVERAGE EXAMINATIONS PERFORMED IN THE THIRD 10-YEAR INSPECTION INTERVAL By letter dated July 30, 2015, Dominion Nuclear Connecticut, Inc. (DNC) submitted relief requests for limited coverage examinations performed in the first inspection period of the third 10-year inservice inspection interval for Millstone Power Station Unit 3 (MPS3).
In an email dated October 6, 2015, the Nuclear Regulatory Commission (NRC) transmitted a request for additional information (RAI) to DNC related to Relief Requests IR-3-19, IR-3-20, and IR-3-21. DNC agreed to respond to the revised RAI by November 20, 2015.
The attachment to this letter provides DNC's response to the NRC's RAI.
If you have any questions regarding this response, please contact Wanda Craft at (804) 273-4687.
Sincerely, Mark D. Sartain Vice President - Nuclear Engineering Commitments made in this letter: None
Attachment:
Response to Request for Additional Information Regarding ASME Section Xl Inservice Inspection Program Relief Requests for Limited Coverage Examinations Performed in the Third 10-Year Inspection Interval
Serial No.15-498 Docket No. 50-423 Page 2 of 2 cc:
U.S. Nuclear Regulatory Commission Region I 2100 Renaissance Blvd, Suite 100 King of Prussia, PA 19406-2713 R. V. Guzman Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 08-C2 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector Millstone Power Station
Serial No.15-498 Docket No. 50-423 ATTACHMENT RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING ASME SECTION XI INSERVICE INSPECTION PROGRAM RELIEF REQUESTS FOR LIMITED COVERAGE EXAMINATIONS PERFORMED IN THE THIRD 10-YEAR INSPECTION INTERVAL DOMINION NUCLEAR CONNECTICUT, INC.
MILLSTONE POWER STATION UNIT 3
Serial No.15-498 Docket No. 50-423 Attachment, Page 1 of 1 By letter dated July 30, 2015, Dominion Nuclear Connecticut, Inc. (DNC) submitted relief requests for limited coverage examinations performed in the first inspection period of the third 10-year inservice inspection interval for Millstone Power Station Unit 3 (MPS3).
In an email dated October 6, 2015, the Nuclear Regulatory Commission (NRC) transmitted a request for additional information (RAI) to DNC related to Relief Requests IR-3-19, IR-3-20, and IR-3-21. This attachment provides DNC's response to the NRC's RAI.
Question 1 For Requests for Relief Nos. IR-3-19, /R-3-20, and/IR-3-21, please clarify the statement that welds contained in the subject relief requests were examined "using pulse echo ultrasonic instruments and search units."
Specifically, provide the non-destructive examination procedure used in the subject ultrasonic examinations (.e.g., ASME Code, Section Xl, Appendix V///; or Section V, Article 4; or other).
DNC Response The statement "using pulse echo ultrasonic instruments and search units" describes the type of instrumentation used for the examinations. For the examinations addressed in Relief Requests IR-3-19, IR-3-20, and IR-3-21, the equipment used to perform the examinations consisted of non-encoded, manual conventional (non-phased array) examination equipment with procedures written in accordance with ASME Section Xl, Appendix I and Section V, Article 4.
Dominion Nuclear Connecticut, Inc.
i'~
nnin 50 Dominonoulevard, Glen Ale, VADo23060 Web Address: www.dom.com November 10, 2015 U.S. Nuclear Regulatory Commission Serial No.15-498 Attention: Document Control Desk NLOSANDC RO Washington, DC 20555 Docket No.
50-423 License No. NPF-49 DOMINION NUCLEAR CONNECTICUT. INC.
MILLSTONE POWER STATION UNIT 3 RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING ASME SECTION XI INSERVICE INSPECTION PROGRAM RELIEF REQUESTS FOR LIMITED COVERAGE EXAMINATIONS PERFORMED IN THE THIRD 10-YEAR INSPECTION INTERVAL By letter dated July 30, 2015, Dominion Nuclear Connecticut, Inc. (DNC) submitted relief requests for limited coverage examinations performed in the first inspection period of the third 10-year inservice inspection interval for Millstone Power Station Unit 3 (MPS3).
In an email dated October 6, 2015, the Nuclear Regulatory Commission (NRC) transmitted a request for additional information (RAI) to DNC related to Relief Requests IR-3-19, IR-3-20, and IR-3-21. DNC agreed to respond to the revised RAI by November 20, 2015.
The attachment to this letter provides DNC's response to the NRC's RAI.
If you have any questions regarding this response, please contact Wanda Craft at (804) 273-4687.
Sincerely, Mark D. Sartain Vice President - Nuclear Engineering Commitments made in this letter: None
Attachment:
Response to Request for Additional Information Regarding ASME Section Xl Inservice Inspection Program Relief Requests for Limited Coverage Examinations Performed in the Third 10-Year Inspection Interval
Serial No.15-498 Docket No. 50-423 Page 2 of 2 cc:
U.S. Nuclear Regulatory Commission Region I 2100 Renaissance Blvd, Suite 100 King of Prussia, PA 19406-2713 R. V. Guzman Senior Project Manager U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 08-C2 11555 Rockville Pike Rockville, MD 20852-2738 NRC Senior Resident Inspector Millstone Power Station
Serial No.15-498 Docket No. 50-423 ATTACHMENT RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION REGARDING ASME SECTION XI INSERVICE INSPECTION PROGRAM RELIEF REQUESTS FOR LIMITED COVERAGE EXAMINATIONS PERFORMED IN THE THIRD 10-YEAR INSPECTION INTERVAL DOMINION NUCLEAR CONNECTICUT, INC.
MILLSTONE POWER STATION UNIT 3
Serial No.15-498 Docket No. 50-423 Attachment, Page 1 of 1 By letter dated July 30, 2015, Dominion Nuclear Connecticut, Inc. (DNC) submitted relief requests for limited coverage examinations performed in the first inspection period of the third 10-year inservice inspection interval for Millstone Power Station Unit 3 (MPS3).
In an email dated October 6, 2015, the Nuclear Regulatory Commission (NRC) transmitted a request for additional information (RAI) to DNC related to Relief Requests IR-3-19, IR-3-20, and IR-3-21. This attachment provides DNC's response to the NRC's RAI.
Question 1 For Requests for Relief Nos. IR-3-19, /R-3-20, and/IR-3-21, please clarify the statement that welds contained in the subject relief requests were examined "using pulse echo ultrasonic instruments and search units."
Specifically, provide the non-destructive examination procedure used in the subject ultrasonic examinations (.e.g., ASME Code, Section Xl, Appendix V///; or Section V, Article 4; or other).
DNC Response The statement "using pulse echo ultrasonic instruments and search units" describes the type of instrumentation used for the examinations. For the examinations addressed in Relief Requests IR-3-19, IR-3-20, and IR-3-21, the equipment used to perform the examinations consisted of non-encoded, manual conventional (non-phased array) examination equipment with procedures written in accordance with ASME Section Xl, Appendix I and Section V, Article 4.