NRC-13-0034, DTE Electric Companys Response to NRC Request for Information Regarding the Capability to Perform Offsite Dose Assessment During an Event Involving Multiple Release Sources
| ML13178A025 | |
| Person / Time | |
|---|---|
| Site: | Fermi  (NPF-043) |
| Issue date: | 06/26/2013 |
| From: | Conner J DTE Energy |
| To: | Office of Nuclear Reactor Regulation, Document Control Desk |
| References | |
| NRC-13-0034 | |
| Download: ML13178A025 (5) | |
Text
J. Todd Conner Site Vice Presideat DTE Energy Company 6400 N. Dixie Highway, Newport, MI 48166 Tel: 734.586.4849 Fax: 734.586.5295 Email: connerj@dteenergy.com DTE Energy-June 26, 2013 NRC-13-0034 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington D C 20555-0001
References:
- 1) Fermi 2 NRC Docket No. 50-341 NRC License No. NPF-43
- 2) NRC Letter to NEI, "Multi-Unit Dose Assessment,"
dated February 27, 2013 (ML13073A522)
- 3) NEI letter to NRC, "Commitment for Implementation of Multi-Unit Dose Assessment Capability," dated March 14, 2013 (ML13073A522)
- 4) NEI letter to NRC, "Industry Implementation of Multi-unit Dose Assessment Capability," dated January 28, 2013 (ML13028A200)
Subject:
DTE Electric Company's Response to NRC Request for Information Regarding the Capability to Perform Offsite Dose Assessment During an Event Involving Multiple Release Sources In Reference 2, the NRC requested that the Nuclear Energy Institute (NEI) provide additional detailed information regarding licensees' site-specific current or planned multi-unit dose assessment capabilities. In Reference 3, NEI notified the NRC that licensees would provide the requested detailed information directly to the NRC.
Reference 3 also identified the scope of the detailed information that would be provided.
In accordance with Reference 3, the enclosure to this letter provides the DTE Electric Company (DTE) information regarding the current and anticipated capabilities of Fermi 2 to perform offsite dose assessment during an event involving multiple release sources (e.g., concurrent releases from reactor containment and spent fuel pool).
This letter contains no new regulatory commitments.
USNRC NRC-13-0034 Page 2 Should you have any questions or require additional information, please contact Mr.
Kirk R. Snyder, Manager, Industry Interface at (734) 586-5020.
Sincerely, Enclosure cc:
Director, Office of Nuclear Reactor Regulation NRC Project Manager NRC Resident Office Reactor Projects Chief, Branch 5, Region III Regional Administrator, Region III Supervisor, Electric Operators, Michigan Public Service Commission
Enclosure to NRC-13-0034 Fermi 2 NRC Docket No. 50-341 Operating License No. NPF-43 Information Regarding the Capability to Perform Offsite Dose Assessment During an Event Involving Multiple Release Sources
Enclosure to NRC-13-0034 Page 1 DTE Electric Company's Response to NRC Request for Information Regarding the Capability to Perform Offsite Dose Assessment During an Event Involving Multiple Release Sources
- 1. Provide a summary of current capability to perform multi-unit/multi-source dose assessment.
Response
Multi-unit dose assessment is not applicable to Fermi 2. Fermi 2 is a single unit Boiling Water Reactor. Fermi 1 is being maintained in a safe storage condition with no nuclear fuel on site. The nearest other nuclear facility is First Energy's Davis Besse Nuclear Power Plant which is located approximately 32 miles from Fermi 2.
The Fermi 2 dose assessment program currently does not have the capability to perform simultaneous multiple release point calculations.
Fermi 2 currently has the capability to obtain a conservative multi-source dose assessment estimate by manually performing individual dose assessment runs for each release point and summing the results to make dose assessment estimates. This capability is consistent with the compensatory measures described by NEI in Reference 4.
- 2. For those who do not have this capability, the anticipated schedule to establish it on an interim and/or permanent basis. It is expected that interim measures will be available to perform this function prior to implementation of a permanent solution.
Response
Procedure changes and training of the Emergency Response Organization (ERO) will be completed to ensure consistent implementation of the current capability described above until the permanent solution is implemented. The procedure changes and training will be completed by October 22, 2013.
The permanent solution for multi-source dose assessment is to replace or modify the existing dose assessment software model such that the software is capable of performing the necessary multiple release point modeling. The associated procedure changes and ERO training will also be completed and the permanent solution will be in place by December 31. 2014.
Enclosure to NRC-13-0034 Page 2
- 3. Due dates associated with each key schedule action or milestone
Response
See the response to item number 2 above.
- 4. A description of how the implementation schedule will be tracked and the associated tracking identifiers (e.g., a commitment tracking or corrective action system number).
Response
The implementation of both the interim measures and the permanent solution described in this letter will be tracked by Fermi 2 corrective action document number 13-22400.