Letter Sequence RAI |
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|
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MONTHYEARML16007A1802016-01-20020 January 2016
Regulatory Audit Report Regarding License Amendment Request to Adopt Technical Specifications Task Force-490, Rev.0, and Implement Alternative Source Term
Project stage: Other
ML16169A1182016-03-31031 March 2016
RWA-1313-015, Rev. 1, AST Radiological Analysis Technical Report.
Project stage: Request
ML16166A1272016-06-14014 June 2016
NRR E-mail Capture - D.C. Cook Units 1 and 2 - Arcb RAI Concerning LAR to Adopt TSTF-490 and Implement FULL-SCOPE AST (CAC Nos. MF5184 and MF5185)
Project stage: RAI
AEP-NRC-2016-56, Response to Seventh Request for Additional Information Regarding the License Amendment Request to Adopt TSTF-490 and Implement Alternative Source Term2016-07-12012 July 2016
Response to Seventh Request for Additional Information Regarding the License Amendment Request to Adopt TSTF-490 and Implement Alternative Source Term
Project stage: Request
ML16203A2682016-07-25025 July 2016
Regulatory Audit Report Regarding License Amendment Request to Adopt Technical Specifications Task Force-490, Rev.0, and Implement Alternative Source Term (CAC Nos. MF5184 and MF5185)
Project stage: Other
AEP-NRC-2016-78, Unit 2 - Supplement to the License Amendment Request to Adopt TSTF-490, Revision 0, Deletion of E Bar Definition and Revision to Reactor Coolant System Specific Activity Technical Specification and ..2016-09-15015 September 2016
Unit 2 - Supplement to the License Amendment Request to Adopt TSTF-490, Revision 0, Deletion of E Bar Definition and Revision to Reactor Coolant System Specific Activity Technical Specification and ..
Project stage: Supplement
ML16242A1112016-10-20020 October 2016
DC Cook, Units 1 and 2 - Issuance of Amendments Adoption of TSTF-490,REV.0,Deletion of E-Bar Definition and Revision to Reactor Coolant System Specific Activity Technical Specification and Implementation of Full-Scope Alternative Source Ter
Project stage: Approval
ML16327A1102016-12-28028 December 2016
Cover Letter for Revised Safety Evaluation for Amendment Nos. 332 and 314 Adoption of TSTF-490, Rev. 0, and Implementation of Full-Scope Alternative Source Term
Project stage: Approval
2016-03-31
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Text
NRR-PMDAPEm Resource From: Dietrich, Allison Sent: Tuesday, June 14, 2016 9:04 AM To: hlkish@aep.com Cc: Terry L Curtiss (tlcurtiss@aep.com); Dickson, Elijah; Shoop, Undine; Wrona, David
Subject:
D.C. COOK UNITS 1 AND 2 - ARCB RAI CONCERNING LAR TO ADOPT TSTF-490 AND IMPLEMENT FULL-SCOPE AST (CAC NOS. MF5184 AND MF5185)
Attachments: ARCB RAI 10 REGARDING AST MF5184 MF5185.pdf By letter dated November 14, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14324A209), as supplemented by letter dated February 12, 2015 (ADAMS Accession No. ML15050A247), Indiana Michigan Power Company (I&M) submitted a license amendment request for the Donald C. Cook Nuclear Plant, Units 1 and 2. The proposed amendment consists of adoption of Technical Specifications Task Force (TSTF)-490, Revision 0, and implementation of a full scope alternate source term radiological analysis methodology.
The U.S. Nuclear Regulatory Commission (NRC) staff in the Radiation Protection and Consequence Branch of the Office of Nuclear Reactor Regulation has reviewed your submittal, as supplemented. The staff has determined that additional information is needed in order to complete the review, as described in the attached request for additional information (RAI). The draft RAI was sent to I&M via electronic mail on May 26, 2016. Clarification telephone conferences were held on June 6, 2016 and June 13, 2016. Please provide your response by July 13, 2016.
Please let me know if you have any questions or concerns.
Sincerely, Allison W. Dietrich, Project Manager Plant Licensing Branch III-1 Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation 301-415-2846 1
Hearing Identifier: NRR_PMDA Email Number: 2898 Mail Envelope Properties (71d7dcf0b47f4487ab9dc06fb8177016)
Subject:
D.C. COOK UNITS 1 AND 2 - ARCB RAI CONCERNING LAR TO ADOPT TSTF-490 AND IMPLEMENT FULL-SCOPE AST (CAC NOS. MF5184 AND MF5185)
Sent Date: 6/14/2016 9:04:14 AM Received Date: 6/14/2016 9:04:14 AM From: Dietrich, Allison Created By: Allison.Dietrich@nrc.gov Recipients:
"Terry L Curtiss (tlcurtiss@aep.com)" <tlcurtiss@aep.com>
Tracking Status: None "Dickson, Elijah" <Elijah.Dickson@nrc.gov>
Tracking Status: None "Shoop, Undine" <Undine.Shoop@nrc.gov>
Tracking Status: None "Wrona, David" <David.Wrona@nrc.gov>
Tracking Status: None "hlkish@aep.com" <hlkish@aep.com>
Tracking Status: None Post Office: HQPWMSMRS03.nrc.gov Files Size Date & Time MESSAGE 1338 6/14/2016 9:04:14 AM ARCB RAI 10 REGARDING AST MF5184 MF5185.pdf 82358 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date:
Recipients Received:
REQUEST FOR ADDITIONAL INFORMATION REGARDING ADOPTION OF TSTF-490, REVISION 0 AND IMPLEMENTATION OF FULL-SCOPE ALTERNATE SOURCE TERM DONALD C. COOK NUCLEAR PLANT, UNITS 1 AND 2 DOCKET NOS. 50-315 AND 50-316 CAC NOS. MF5184 AND MF5185 RAI-ARCB-10 The proposed change to the Donald C. Cook Nuclear Plant (CNP), Units 1 and 2, technical specification (TS) 3.4.16, in part, modifies Condition B to provide a Condition and Required Action for dose equivalent Xe-133 instead of gross specific activity. In the current TS 3.4.16, Condition A specifies that when dose equivalent I-131 is greater than 1.0 microcuries per gram (Cigm), the required action is to restore dose equivalent I-131 to within limit, with a Completion Time of 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />. During this Condition, Limiting Condition for Operation (LCO) 3.0.4.c is applicable. If the dose equivalent I-131 is not restored within limit in 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, the required action is to be in Mode 3 with average reactor coolant temperature (Tavg) less than 500 °F within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
For the modified Condition B, the licensee proposes a Completion Time of 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> to restore dose equivalent Xe-133 within limits. A Note is also added allowing the applicability of LCO 3.0.4.c.
Technical Specification Task Force (TSTF)-490, Revision 0, provided the following justification for this change:
The Completion Time for revised TS 3.4.16 Required Action B.1 will require restoration of Dose Equivalent Xe-133 to within limit in 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />. This is consistent with the Completion Time for current Required Action A.2 for Dose Equivalent I-131. The Completion Time of 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> for revised Required Action B.1 is acceptable since it is expected that, if there were a noble gas spike, the normal coolant noble gas concentration would be restored within this time period. Also, there is a low probability of an accident occurring during this time period.
While it is a correct statement that the proposed change makes the Completion Times of TS 3.4.16 Required Action A.2 and B.1 in NUREG-1431, Standard Technical Specifications Westinghouse Plants, consistent, it is not clear why the Completion Times should be consistent. The plant Conditions for these Required Actions are different.
The CNP TS 3.4.16 Required Action A.2 is required when the plant is in a condition analyzed in the design basis accident analyses (reactor coolant dose equivalent I-131 is bound between 1 and 60 Cigm). The new proposed TS 3.4.16 Required Action B.1 is required when the plant is in a condition not analyzed in the design basis accident analyses (dose equivalent Xe-133 is greater than 215.1 Cigm).
Typically, the Required Action for a condition not analyzed requires the plant to take immediate actions to begin shutdown of the plant. The proposed change does not require immediate actions to begin shutdown of the plant, but allows 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> before the plant is required to begin shutting down.
x Provide justification for the proposed Completion Time of 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> for TS 3.4.16 Condition B, to include why it is acceptable to be in an unanalyzed condition for 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> when the reactor coolant dose equivalent Xe-133 is greater than 215.1 Cigm without an upper bound.
