ML18024A451
| ML18024A451 | |
| Person / Time | |
|---|---|
| Site: | HI-STORM 100 |
| Issue date: | 01/24/2018 |
| From: | Singh K Holtec |
| To: | Meraj Rahimi Document Control Desk, Office of Nuclear Material Safety and Safeguards |
| References | |
| Download: ML18024A451 (2) | |
Text
HOLTEC INTERNATIONAL Krishna P. Singh Technology Campus, 1 Holtec Blvd., Camden, NJ 08104 Telephone (856) 797-0900 Fax(856)797-0909 Mr. Meraj Rahimi, Branch Chief Division of Spent Fuel Management Office of Nuclear Material Safety and Safeguards U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555-0001 Docket No. 72-1040
Subject:
HI-STORM UMAX Design Change
Reference:
[1]
Dear Mr. Rahimi:
Holtec Letter 5021040, "HI-STORM UMAX Clarification Letter," from S. Anton (Holtec) to J. McKirgan (NRC) dated October 10,017 We thank you and your colleagues at the headquarters and Region IV for an informed discussion on the Technical Specification for HI-STORM UMAX (Docket #72-1040) and truly appreciate NRC's affirmative assessment of the HI-STORM UMAX System's compliance with its governing Technical Specification. We are pleased to state for the record that the design change
[1] has actually improved the ALARA performance of the HI-STORM UMAX system and are heartened by the fact that the fuel loading at SONGS will not be disrupted.
We also recognize your concern with respect to the absence of a calculational nexus between the 30 mrem/hr surface dose limit on the Closure Lid specified in the Technical Specification and the general provision of 10CFR72.104. We hereby confirm that a computation-based connection between the two will be developed using a reasonable set of input data (viz., number of units, distance to the site boundary, average enrichment & bum up, etc.) and shared with the NRC to serve as the technical basis for the 30 mrem/hr limit. This calculation will be docketed as an "explanatory memorandum" and will thus serve as an archival source for future reference by Holtec as well as the Staff. We will submit the above "explanatory memorandum" within 30 days.
Document ID: 5021041 Page 1 of2
HOLTEC INTERNATIONAL Krishna P. Singh Technology Campus, 1 Holtec Blvd., Camden, NJ 08104 Telephone (856) 797-0900 Fax (856) 797-0909 We thank you again for your engagement to this urgent matter.
Very truly yours, cc:
KRISHNA P. SINGH, Ph.D.
PRESIDENT & CEO HOLTEC INTERNATIONAL Michael Layton (NRC)
Document ID: 5021041 Page 2 of2