ML14365A349
| ML14365A349 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 12/29/2014 |
| From: | Javorik A Energy Northwest |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| G02-14-178 | |
| Download: ML14365A349 (3) | |
Text
Alex L. Javonk EN R
YColumbia Generating Station ENERGY RP.O.
Box 968, PE04 Richland, WA 99352-0968 WE;EEEWH W ES Ph. 509-377-8555 I F. 509-377-2354 aljavork@energy-northwest.com December 29, 2014 G02-14-178 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk 11555 Rockville Pike Rockville, MD 20852
Subject:
COLUMBIA GENERATING STATION, DOCKET NO. 50-397 ENERGY NORTHWEST'S REVISED DATE FOR PERMANENT CAPABILITY TO PERFORM OFFSITE DOSE ASSESSMENT DURING AN EVENT INVOLVING MULTIPLE RELEASE SOURCES
Reference:
- 1) Letter dated February 27, 2013, from JT Wiggins (NRC) to JE Pollock (NEI) Requesting Information related to Multi-Unit Dose Assessment Capability
- 2) Letter dated March 14, 2014, JE Pollock (NEI) to JT Wiggins (NRC),
"Commitment for Implementation of Multi-Unit Dose Assessment Capability"
- 3) Letter, G02-13-091, dated June 28, 2013, DA Swank (Energy Northwest) to NRC, "Energy Northwest's Response to Request for Information Regarding the Capability to Perform Offsite Dose Assessment during an Event Involving Multiple Release Sources"
- 4) Letter dated January 29, 2014, NRC to Licensees of Operating Power Reactors on the Enclosed List, "Acknowledgement of Licensee Dose Assessment Submittals Associated with Near-Term Task Force Recommendation 9.3 Related to the Fukushima Dai-Ichi Nuclear Power Plant Accident"
Dear Sir or Madam:
In Reference 1, the Nuclear Regulatory Commission (NRC) requested additional detailed information regarding licensees' site-specific current or planned multi-unit dose assessment capabilities. In Reference 2, the Nuclear Energy Institute (NEI) notified the NRC that licensees would provide the requested detailed information directly to the NRC via letter. Reference 2 also identified the scope of the detailed information that would be provided. The requested information for Columbia Generating Station was provided in Reference 3. In Reference 4, the NRC noted that licensees "have multi-unit and/or multi-source dose assessment capabilities or will have these capabilities by December 31, 2014."
ENERGY NORTHWEST'S REVISED DATE FOR PERMANENT CAPABILITY TO PERFORM OFFSITE DOSE ASSESSMENT DURING AN EVENT INVOLVING MULTIPLE RELEASE SOURCES Page 2 of 2 In Reference 3, Energy Northwest described two planned actions: 1) modify the existing Emergency Dose Projection System (EDPS) and Quick Emergency Dose Projection System (QEDPS) dose assessment computer programs to allow for a separate spent fuel pool source dose calculation in addition to the reactor core source dose calculation, and 2) deploy the next generation URI/RASCAL software containing this capability. The first action has been completed and provides the capability to perform offsite dose assessment during an event involving multiple release sources.
However, this software requires that the individual dose assessment results be manually summed to determine a total offsite dose assessment result and, as such, does not represent the permanent (final) capability. In Reference 3, Energy Northwest stated that the permanent capability was expected to be in place no later than December 31, 2014. Energy Northwest is unable to complete this action by the original due date. Energy Northwest has developed a recovery plan and schedule and now expects to implement the URI/RASCAL software by May 30, 2015. contains the regulatory commitment as documented herein. If you have any questions or require additional information, please contact Ms. L. L. Williams at (509) 377-8148.
Executed on the __'_day of A-6 e,,ell
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Respectfully, A. E' a Vice President, Engineering
Attachment:
As stated cc: NRC Region IV Administrator NRC NRR Project Manager NRC Senior Resident Inspector/988C CD Sonada - BPA/1 399 (email)
ENERGY NORTHWEST'S REVISED DATE FOR PERMANENT CAPABILITY TO PERFORM OFFSITE DOSE ASSESSMENT DURING AN EVENT INVOLVING MULTIPLE RELEASE SOURCES Attachment I Page 1 of 1 List of Commitments The following table identifies the regulatory commitments in this document. Any other statements in this submittal of intended or planned actions are provided for information purposes and are not considered to be regulatory commitments.
Scheduled Commitment Completion Date Deploy the next generation URI/RASCAL software containing the capability to allow for a separate spent fuel pool source dose calculation in 5/30/15 addition to the reactor core source dose calculation.