ML13183A125
| ML13183A125 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 06/27/2013 |
| From: | Browning J G Entergy Operations |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 0CAN061302 | |
| Download: ML13183A125 (4) | |
Text
0CAN061302
June 27, 2013
U.S. Nuclear Regulatory Commission
ATTN: Document Control Desk
11555 Rockville Pike
Rockville, MD 20852
SUBJECT:
Commitment for Implementation of Multi-Source Dose Assessment Capability
Arkansas Nuclear One - Units 1 and 2
Docket Nos. 50-313 and 50-368
REFERENCE:
Nuclear Energy Institute (NEI) letter (J. E. Pollock) to NRC, (J. T. Wiggins), Commitment for Implementation of Multi-Unit Dose Assessment Capability , dated March 14, 2013 (ML13073A522)
Dear Sir or Madam:
This letter provides information regarding multi-source dose assessment capability for
Arkansas Nuclear One (ANO) in response to the referenced communication from NEI.
The Emergency Response Organization at ANO currently uses the Unified RASCAL (Radiological Assessment System for Consequenc e Analysis) Interface (URI) computer program for modeling offsite dose assessment
- s. This computer program is used to estimate the dose consequences in the emergency response sectors using input
parameters (source term, meteorological conditions, etc.). In the event of a scenario
with concurrent releases from more than one release point, individual isotopic group
release rates can be combined into a total for each isotopic group release rate before
running dose projections or dose projections can be run for each release pathway and
end results combined. Instructions for performing this type of analysis are provided in
the ANO dose assessment emergency response procedure.
Consistent with the referenced letter, Entergy Operations, Inc. plans to transition to URI
Version 2 (URI-2), which provides for an improved capability for multi-source dose
consequence analysis. This transition to URI-2 is identified as a regulatory commitment
with a completion date of not later than December 31, 2014. Entergy Operations, Inc.
1448 S.R. 333 Russellville, AR 72802
Tel 479-858-3110 Jeremy G. Browning Vice President, Operations A rkansas Nuclear One
0CAN061302 Page 2 of 2
This letter contains a new regulatory commitment which is identified in the attachment.
Please address any comments or questions regarding this matter to Stephenie Pyle at
479.858.4704.
Sincerely, Original signed by Jeremy G. Browning JGB/nbm
Attachment:
List of Regulatory Commitments
cc: Mr. Arthur T. Howell Regional Administrator
U. S. Nuclear Regulatory Commission, Region IV
1600 East Lamar Boulevard Arlington, TX 76011-4511
U. S. Nuclear Regulatory Commission
Attn: Director, Office of Nuclear Reactor Regulation
One White Flint North
11555 Rockville Pike
Rockville, MD 20852
NRC Senior Resident Inspector
Arkansas Nuclear One
P.O. Box 310
London, AR 72847
U. S. Nuclear Regulatory Commission
Attn: Mr. Kaly Kalyanam
One White Flint North - Mailstop O-8 B1
11555 Rockville Pike
Rockville, MD 20852-2378
U. S. Nuclear Regulatory Commission ATTN: J. T. Wiggins
Director Nuclear Security and Incident Response
Two White Flint North - Mailstop 4D22A
11555 Rockville Pike
Rockville, MD 20852-2378
Attachment to 0CAN061302 List of Regulatory Commitments Attachment to 0CAN061302
Page 1 of 1
List of Regulatory Commitments The following table identifies those actions committed to by Entergy in this document. Any other
statements in this submittal are provided for information purposes and are not considered to be
TYPE (Check One)
COMMITMENT ONE-TIME ACTION CONTINUING COMPLIANCE SCHEDULED COMPLETION DATE (If Required)
Consistent with the referenced letter, Entergy Operations, Inc. plans to
transition to the Unified Radiological
Assessment System for Consequence
Analysis Interface Version 2 computer
program, which provides for an improved
capability for multi-source dose
consequence analysis. X December 31, 2014