ML15104A623

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Issuance of Amendment Adoption of Technical Specifications Task Force Standard Technical Specifications Change Traveler TSTF-523
ML15104A623
Person / Time
Site: Grand Gulf Entergy icon.png
Issue date: 05/12/2015
From: Wang A
Plant Licensing Branch IV
To:
Entergy Operations
Wang A
References
GL-08-001, TAC MF4976
Download: ML15104A623 (24)
v • d • e


Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 May 12, 2015 Vice President, Operations Entergy Operations, Inc.

Grand Gulf Nuclear Station P.O. Box 756 Port Gibson, MS 39150

SUBJECT:

GRAND GULF NUCLEAR STATION, UNIT 1 - ISSUANCE OF AMENDMENT RE: ADOPTION OF TECHNICAL SPECIFICATIONS TASK FORCE STANDARD TECHNICAL SPECIFICATIONS CHANGE TRAVELER TSTF-523, REVISION 2, "GENERIC LETTER 2008-01, MANAGING GAS ACCUMULATION" (TAC NO. MF4976)

Dear Sir or Madam:

The U.S. Nuclear Regulatory Commission (NRC) has issued the enclosed Amendment No. 202 to Facility Operating License No. NPF-29 for the Grand Gulf Nuclear Station, Unit 1.

This amendment consists of changes to the Technical Specifications (TSs) in response to your application dated October 7, 2014, as supplemented by letter dated January 6, 2015 (Agencywide Documents Access and Management System (ADAMS) Accession Nos. ML14280A092 and ML15006A229, respectively).

The amendment revises Surveillance Requirements (SRs) related to gas accumulation for the emergency core cooling system and reactor core isolation cooling system. The amendment also adds new SRs related to gas accumulation for the residual heat removal, shutdown cooling, and containment spray systems. The NRC staff has concluded that the TS changes are consistent with NRG-approved Technical Specifications Task Force (TSTF) Standard Technical Specifications change traveler TSTF-523, Revision 2, "Generic Letter 2008-01, Managing Gas Accumulation" (ADAMS Accession No. ML13053A075), dated February 21, 2013, as part of the consolidated line item improvement process. The TS Bases changes associated with these SRs were also changed as proposed by TSTF-523, Revision 2.

A copy of our related Safety Evaluation is also enclosed. The Notice of Issuance will be included in the Commission's next biweekly Federal Register notice.

Sincerely,

~~J~

Alan B. Wang, Project Manager Plant Licensing IV-2 and Decommissioning Transition Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 50-416

Enclosures:

1. Amendment No. 202 to NPF-29
2. Safety Evaluation cc w/encls: Distribution via Listserv

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555~0001 ENTERGY OPERATIONS, INC.

SYSTEM ENERGY RESOURCES, INC.

SOUTH MISSISSIPPI ELECTRIC POWER ASSOCIATION ENTERGY MISSISSIPPI. INC.

DOCKET NO. 50-416 GRAND GULF NUCLEAR STATION, UNIT 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 202 License No. NPF-29

1. The Nuclear Regulatory Commission (the Commission) has found that:

A. The application for amendment by Entergy Operations, Inc. (the licensee), dated October 7, 2014, as supplemented by letter dated January 6, 2015, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commission's rules and regulations set forth in 10 CFR Chapter I; B. The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C. There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulations; D. The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E. The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.

Enclosure 1

2. Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and Paragraph 2.C.(2) of Facility Operating License No. NPF-29 is hereby amended to read as follows:

(2) Technical Specifications The Technical Specifications contained in Appendix A and the Environmental Protection Plan contained in Appendix B, as revised through Amendment No. 202 are hereby incorporated in the license. Entergy Operations, Inc. shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.

3. This license amendment is effective as of its date of issuance and shall be implemented within 90 days from the date of issuance.

FOR THE NUCLEAR REGULATORY COMMISSION',

Meena K. Khanna, Chief Plant Licensing IV-2 and Decommissioning Transition Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation

Attachment:

Changes to the Facility Operating License No. NPF-29 and the Technical Specifications Date of Issuance: May 12, 2015

ATTACHMENT TO LICENSE AMENDMENT NO. 202 FACILITY OPERATING LICENSE NO. NPF-29 DOCKET NO. 50-416 Replace the following pages of the Facility Operating License No. NPF-29 and the Appendix A, Technical Specifications with the attached revised pages. The revised pages are identified by amendment number and contain marginal lines indicating the areas of change.

Facility Operating License Remove 4 4 Technical Specifications Remove Insert 3.4-23 3.4-23 3.4-25 3.4-25 3.5-4 3.5-4 3.5-8 3.5-8 3.5-11 3.5-11 3.6-23 3.6-23 3.6-32 3.6-32 3.9-11 3.9-11 3.9-14 3.9-14

(b) SERI is required to notify the NRC in writing prior to any change in (i) the terms or conditions of any new or existing sale or lease agreements executed as part of the above authorized financial transactions, (ii) the GGNS Unit 1 operating agreement, (iii) the existing property insurance coverage for GGNS Unit 1 that would materially alter the representations and conditions set forth in the Staff's Safety Evaluation Report dated December 19, 1988 attached to Amendment No. 54. In addition, SERI is required to notify the NRC of any action by a lessor or other successor in interest to SERI that may have an effect on the operation of the facility.

C. The license shall be deemed to contain and is subject to the conditions specified in the Commission's regulations set forth in 10 CFR Chapter I and is subject to all applicable provisions of the Act and to the rules, regulations, and orders of the Commission now or hereafter in effect; and is subject to the additional conditions specified or incorporated below:

(1) Maximum Power Level Entergy Operations, Inc. is authorized to operate the facility at reactor core power levels not in excess of 4408 megawatts thermal (100 percent power) in accordance with the conditions specified herein.

(2) Technical Specifications The Technical Specifications contained in Appendix A and the Environmental Protection Plan contained in Appendix B, as revised through Amendment No. 202 are hereby incorporated into this license.

Entergy Operations, Inc. shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.

During Cycle 19, GGNS will conduct monitoring of the Oscillation Power Range Monitor (OPRM). During this time, the OPRM Upscale function (Function 2.f of Technical Specification Table 3.3.1.1-1) will be disabled and operated in an "indicate only" mode and technical specification requirements will not apply to this function. During such time, Backup Stability Protection measures will be implemented via GGNS procedures to provide an alternate method to detect and suppress reactor core thermal hydraulic instability oscillations. Once monitoring has been successfully completed, the OPRM Upscale function will be enabled and technical specification requirements will be applied to the function; no further operating with this function in an "indicate only" mode will be conducted.

4 Amendment No. 202

RHR Shutdown Cooling System - Hot Shutdown 3.4.9 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.4.9.1 -------------------NOTE--------------------

Not required to be met until 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> after reactor steam dome pressure is less than the RHR cut in permissive pressure.

Verify one RHR shutdown cooling subsystem 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> or recirculation pump is operating.

SR 3.4.9.2 -----------------NOTE----------------------

Not required to be performed until 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after reactor steam dome pressure is < the RHR cut in permissive pressure.

31 days Verify RHR shutdown cooling subsystem locations susceptible to gas accumulation are sufficiently filled with water GRAND GULF 3.4-23 Amendment No. ~, 202

RHR Shutdown Cooling System - Cold Shutdown 3.4.10 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B. No RHR shutdown B.l Verify reactor 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> from cooling subsystem in coolant circulating discovery of no operation. by an alternate reactor coolant method. circulation AND AND No recirculation pump in operation. Once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter AND B.2 Monitor reactor Once per hour coolant temperature and pressure.

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.4.10.1 Verify one RHR shutdown cooling subsystem 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> or recirculation pump is operating.

SR 3.4.10.2 Verify RHR shutdown cooling subsystem 31 days locations susceptible to gas accumulation are sufficiently filled with water.

GRAND GULF 3.4-25 Amendment No. -+/--2-0-, 202

ECCS - Operating

3. 5 .1 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.5.1.1 Verify, for each ECCS injection/spray 31 days subsystem, locations susceptible to gas accumulation are sufficiently filled with water.

SR 3.5.1.2 -------------------NOTE--------------------

Not required to be met for system vent flow paths opened under administrative control.

Verify each ECCS injection/spray subsystem 31 days manual, power operated, and automatic valve in the flow path, that is not locked, sealed, or otherwise secured in position, is in the correct position.

SR 3.5.1.3 Verify ADS accumulator supply pressure is 31 days

> 150 psig.

SR 3.5.1.4 Verify each ECCS pump develops the In accordance specified flow rate with the specified with the total developed head. Inservice Testing Program TOTAL SYSTEM FLOW RATE DEVELOPED HEAD LPCS  ;:> 7115 gpm  ;:> 290 psid LPCI  ;:> 7450 gpm  ;:> 125 psid HPCS  ;:> 7115 gpm  ;:> 445 psid (continued)

GRAND GULF 3.5-4 Amendment No. ~' ~' 202

ECCS-Shutdown 3.5.2 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.5.2.2 Verify, for the required High Pressure Core 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> Spray (HPCS) System, the:

a. Suppression pool water level is

~ 12 ft 8 inches; or

b. Condensate storage tank water level is

~ 18 ft.

SR 3.5.2.3 Verify, for each required ECCS injection/ 31 days spray subsystem, locations susceptible to gas accumulation are sufficently filled with water.

SR 3.5.2.4 -------------------NOTE--------------------

Not required to be met for system vent flow paths opened under administrative control.

Verify each required ECCS injection/spray 31 days subsystem manual, power operated, and automatic valve in the flow path, that is not locked, sealed, or otherwise secured in position, is in the correct position.

(continued)

GRAND GULF 3.5-8 Amendment No. +&G, 6-9-, 202

RCIC System 3.5.3 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.5.3.1 Verify the RCIC System locations 31 days susceptible to gas accumulation are sufficiently filled with water.

SR 3.5.3.2 -------------------NOTE-------------------

Not required to be met for system vent flow paths opened under administrative control.

Verify each RCIC System manual, power 31 days operated, and automatic valve in the flow path, that is not locked, sealed, or otherwise secured in position, is in the correct position.

SR 3.5.3.3 -------------------NOTE--------------------

Not required to be performed until 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after reactor steam pressure and flow are adequate to perform the test.

Verify, with RCIC steam supply pressure 92 days s 1045 psig and 2 945 psig, the RCIC pump can develop a flow rate 2 800 gpm against a system head corresponding to reactor pressure.

SR 3.5.3.4 -------------------NOTE--------------------

Not required to be performed until 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after reactor steam pressure and flow are adequate to perform the test.

Verify, with RCIC steam supply pressure 24 months s 165 psig and 2 150 psig, the RCIC pump can develop a flow rate 2 800 gpm against a system head corresponding to reactor pressure.

(continued)

GRAND GULF 3.5-11 Amendment No. ~' -+/--9-+, 202

RHR Containment Spray System 3.6.1.7 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.6.1.7.1 ------------------NOTE-------------------

1. RHR containment spray subsystems may be considered OPERABLE during alignment and operation for decay heat removal when below the RHR cut in permissive pressure in MODE 3 if capable of being manually realigned and not otherwise inoperable.
2. Not Required to be met for system vent flow paths opened under 31 days administrative control.

Verify each RHR containment spray subsystem manual, power operated, and automatic valve in the flow path that is not locked, sealed, or otherwise secured in position is in the correct position.

SR 3.6.1.7.2 Verify RHR containment spray subsystem 31 days locations susceptible to gas accumulation are sufficiently filled with water.

SR 3.6.1.7.3 Verify each RHR pump develops a flow rate In of ~ 7450 gpm on recirculation flow accordance through the associated heat exchanger to with the the suppression pool. Inservice Testing Program SR 3.6.1.7.4 Verify each RHR containment spray 24 months subsystem automatic valve in the flow path actuates to its correct position on an actual or simulated automatic initiation signal.

SR 3.6.1.7.5 Verify each spray nozzle is unobstructed. At first refueling AND 10 years GRAND GULF 3.6-23 Amendment No. i:Z-6, +/-97, 202

RHR-High Water Level 3.9.8 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME B. (continued) B.3 Initiate action to Immediately restore one standby gas treatment subsystem to OPERABLE status.

AND B.4 Initiate action to Immediately restore isolation capability in each required secondary containment penetration flow path not isolated.

C. No decay heat removal C.1 Verify reactor 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> from subsystem in coolant circulation discovery of no operation. by an alternate reactor coolant method. circulation AND Once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter AND C.2 Monitor reactor Once per hour coolant temperature.

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.9.8.1 Verify one decay heat removal subsystem is 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> operating.

SR 3.9.8.2 Verify required RHR shutdown cooling 31 days subsystem locations susceptible to gas accumulation are sufficiently filled with water.

GRAND GULF 3. 9-11 Amendment No. -+/--&G-,202

RHR - Low Water Level

3. 9. 9 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.9.9.1 Verify one decay heat removal subsystem is 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> operating.

SR 3.9.9.2 Verify RHR shutdown cooling subsystem 31 days locations susceptible to gas accumulation are sufficiently filled with water.

GRAND GULF 3.9-14 Amendment No. ~, 202

RHR Suppression Pool Cooling 3.6.2.3 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.6.2.3.1 Verify each RHR suppression pool cooling 31 days subsystem manual, power operated, and automatic valve in the flow path that is not locked, sealed, or otherwise secured in position is in the correct position or can be aligned to the correct position.

SR 3.6.2.3.2 Verify RHR suppression pool cooling 31 days subsystem locations susceptible to gas accumulation are sufficiently filled with water.

SR 3.6.2.3.3 Verify each RHR pump develops a flow rate In accordance

~ 7450 gpm through the associated heat with the exchangers to the suppression pool. Inservice Testing Program GRAND GULF 3.6-32 Amendment No. ~, 202

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT NO. 202 TO FACILITY OPERATING LICENSE NO. NPF-29 ENTERGY OPERATIONS, INC., ET AL.

GRAND GULF NUCLEAR STATION, UNIT 1 DOCKET NO. 50-416

1.0 INTRODUCTION

By application dated October 7, 2014 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML14280A092), as supplemented by letter dated January 6, 2015 (ADAMS Accession No. ML15006A229), Entergy Operations, Inc. (the licensee),

requested changes to the Technical Specifications (TSs) for Grand Gulf Nuclear Station, Unit 1 (GGNS).

The proposed changes would revise Surveillance Requirements (SRs) related to gas accumulation for the emergency core cooling system (ECCS) and reactor core isolation cooling (RCIC) system. The proposed changes will also add new SRs related to gas accumulation for the residual heat removal (RHR), shutdown cooling (SOC), and containment spray (CS) systems. The TS changes are consistent with U.S. Nuclear Regulatory Commission (NRC)-

approved Technical Specifications Task Force (TSTF) Standard Technical Specifications (STS) change traveler TSTF-523, Revision 2, "Generic Letter 2008-01, Managing Gas Accumulation" (Agencywide Documents Access and Management System (ADAMS) Accession No. ML13053A075), dated February 21, 2013. The TS Bases changes associated with these SRs were also changed as proposed by the TSTF. The availability of this TS improvement was announced in the Federal Register on January 15, 2014 (79 FR 2700) as part of the consolidated line item improvement process.

2.0 REGULATORY EVALUATION

2.1 Background Gas accumulation in reactor systems can result in water hammer, pump cavitation, and pumping of non-condensible gas into the reactor ves el. These effects may result in the subject system being unable to perform its specified safety f nction. The NRC issued Generic Letter (GL) 2008-01, "Managing Gas Accumulation in Erner ency Core Cooling, Decay Heat Removal,

[OHR] and Containment Spray Systems," in January 2008 to address the issue of gas accumulation in ECCS, OHR, and CS systems (ADA S Accession No. ML072910759). The industry and NRC staff agreed that a change to the TS and plant-specific TS would be necessary to address some issues discussed in GL 008-01. TSTF-523, Revision 2, contains changes to the TS SRs and TS Bases to address so e of the concerns in GL 2008-01. The licensee proposed amending the GGNS TS using a !ant-specific adoption of the TSTF-523, Revision 2, changes. 1 2.2 Technical Specification Changes I I

I I

Changes were proposed for SRs 3.5.1.1, 3.5.1.2, 3.5'.2.3, 3.5.2.4, 3.5.3.1, 3.5.3.2, and 3.6.1.7.1 as well as the addition of new SRs 3.4.9.2, 3.4.10.2, .6.1.7.2, 3.6.1.7.5, 3.6.2.3.2, 3.9.8.2, and 3.9.9.2 to TS 3.4.9, "RHR Shutdown Cooling System - Hot Shutdown," TS 3.4.10, "RHR Shutdown Cooling System - Cold Shutdown," TS 3 .. 1, "ECCS - Operating," TS 3.5.2, "ECCS -

Shutdown," TS 3.5.3, "RCIC System," TS 3.6.1.7, "R R Containment Spray System,"

TS 3.6.2.3, "RHR Suppression Pool Cooling," TS 3.9 8, "RHR - High Water Level," and TS 3.9.9, "RHR - Low Water Level," respectively. Asso iated Bases changes were proposed for the respective limiting conditions for operation (LCO ), SR changes, and SR additions.

2.3 Regulatory Review The regulations in Appendix A to Title 10 of the Cod of Federal Regulations ( 10 CFR) Part 50, "General Design Criteria [GDC] for Nuclear Power Pl nts," or similar plant-specific principal design criteria provide design requirements. Appendix B to 10 CFR Part 50, "Quality Assurance Criteria for Nuclear power Plants and Fuel Reproces ing Plants," the TSs, and the licensee quality assurance programs provide operating requir ments. The regulatory requirements of 10 CFR Part 50, Appendix A, that are applicable to g s management in the subject systems include: i

  • GDC 1, "Quality standards and records,"
  • GDC 35, "Emergency core cooling,"
  • GDC 38, "Containment heat removal,"
  • GDC 39, "Inspection of containment heat removal system," and
  • GDC 40, "Testing of heat removal system."

GDC 34 requires an RHR system designed to maintain specified acceptable fuel design limits and to meet design conditions that are not exceeded if a single failure occurs and specified electrical power systems fail. GDC 35, 36, and 37 require an ECCS design that meets performance, inspection, and testing requirements. Additionally, the regulations in 10 CFR 50.46, provide specified ECCS performance criteria. GDC 38, 39, and 40 require a containment heat removal system design that meets performance, inspection, and testing requirements.

Quality assurance criteria provided in 10 CFR Part 50, Appendix B, that apply to gas management in the subject systems include:

  • Criterion 111, "Design Control,"
  • Criterion V, "Instruction, Procedures, and Drawings,"
  • Criterion XI, "Test Control,"
  • Criterion XVI, "Corrective Actions," and
  • Criterion XVII, "Quality Assurance Records."

Criteria Ill and V require measures to ensure that applicable regulatory requirements and the design basis, as defined in 10 CFR 50.2, "Definitions," and as specified in the license application, are correctly translated into controlled specifications, drawings, procedures, and instructions. Criterion XI requires a test program to ensure that the subject systems will perform satisfactorily in service and requires that test results shall be documented and evaluated to ensure that test requirements have been satisfied. Criterion XVI requires measures to ensure that conditions adverse to quality, such as failures, malfunctions, deficiencies, deviations, defective material and equipment, and non-conformances, are promptly identified and corrected, and that significant conditions adverse to quality are documented and reported to management. Criterion XVII requires maintenance of records of activities affecting quality.

The NRC's regulatory requirements related to the content of the TSs are contained in 10 CFR 50.36(c). The regulations at 10 CFR 50.36 require that the TSs include items in the following categories: (1) safety limits, limiting safety systems settings, and limiting control settings; (2) LCOs; (3) SRs; (4) design features; and (5) administrative controls. SRs are requirements relating to test, calibration, or inspection to assure that the necessary quality of systems and components is maintained, that facility operation will be within safety limits, and that the LCOs will be met. Typically, Section 5 of the TSs, requires that licensees establish, implement, and maintain written procedures covering the applicable procedures recommended in Appendix A to Regulatory Guide (RG) 1.33, Revision 3 "Quality Assurance Program Requirements (Operation)," June 2013 (ADAMS Accession No. ML13109A458). Appendix A to RG 1.33 identifies instructions for filling and venting the ECCS and OHR system, as well as for draining and refilling heat exchangers. Standard TSs and most licensee TSs include SRs to verify that at least some of the subject systems piping is filled with water.

The NRC's guidance for the format and content of licensee TSs can be found in NUREG-1434, "Standard Technical Specifications - General Electric Plants, BWR/6," Revision 4, Volume 1 (STS) (ADAMS Accession No. ML12104A195).

Regulatory guidance for the NRC staff's review of containment heat removal systems, ECCS, and RHR systems is provided in the following revisions and sections of NUREG-0800,

"Standard Review Plan [SRP] for the Review of Safety Analysis Reports for Nuclear Power Plants: LWR [Light-Water Reactor] Edition" during the review.

  • SRP, Section 6.2.2, "Containment Heat Removal Systems," Revision 5, dated March 2007 (ADAMS Accession No. ML070160661), provides the procedures concerning the review of containment heat removal under post-accident conditions to help ensure compliance with GDC 38, 39, and 40.

3.0 TECHNICAL EVALUATION

The proposed changes adopted the TS format and content, to the extent practicable, contained in the changes made to STSs, by TSTF-523. The NRC staff evaluated the licensee's proposed changes against the applicable regulatory guidance in the STSs, as modified by TSTF-523.

The NRC staff concluded that the proposed changes are consistent with the guidance in the STS, as modified by TSTF-523.

The NRC staff compared the proposed changes to the existing SRs, as well as the regulatory requirements of 10 CFR 50.36, "Technical specifications."

3.1 Proposed TS SR Changes New SRs 3.4.9.2. 3.4.10.2. 3.6.1.7.2. 3.6.1.7.5, 3.6.2.3.2. 3.9.8.2, and 3.9.9.2 The licensee has proposed the following new SRs:

SR 3.4.9.2, which states,

NOTE ----------------------

Not required to be performed until 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after reactor steam dome pressure is

<the RHR cut in permissive pressure.

Verify RHR shutdown cooling subsystem locations susceptible to gas accumulation are sufficiently filled with water" The frequency for SR 3.4.9.2 will be 31 days.

SR 3.4.10.2, which states, Verify RHR shutdown cooling subsystem locations susceptible to gas accumulation are sufficiently filled with water.

The frequency for SR 3.4.10.2 will be 31 days.

SR 3.6.1.7.2, which states, Verify RHR containment spray subsystem locations susceptible to gas accumulation are sufficiently filled with water.

The frequency for SR 3.6.1.7.2 will be 31 days.

SR 3.6.1.7.5, which states, Verify each spray nozzle is unobstructed.

The frequency for SR 3.6.1. 7.5 will be at first refueling and 10 years.

SR 3.6.2.3.2, which states, Verify RHR suppression pool cooling subsystem locations susceptible to gas accumulation are sufficiently filled with water.

The frequency for SR 3.6.2.3.2 will be 31 days.

SR 3.9.8.2, which states, Verify required RHR shutdown cooling subsystem locations susceptible to gas accumulation are sufficiently filled with water.

The frequency for SR 3.9.8.2 will be 31 days.

SR 3.9.9.2, which states, Verify RHR shutdown cooling subsystem locations susceptible to gas accumulation are sufficiently filled with water.

The frequency for SR 3.9.9.2 will be 31 days.

Revised SRs The licensee has proposed to revise the following TSs:

SR 3.5.1.1 from:

Verify, for each ECCS injection/spray subsystem, the piping is filled with water from the pump discharge valve to the injection valve.

to:

Verify, for each ECCS injection/spray subsystem, locations susceptible to gas accumulation are sufficiently filled with water.

SR 3.5.2.3 from:

Verify, for each ECCS injection/spray subsystem, the piping is filled with water from the pump discharge valve to the injection valve.

to:

Verify, for each required ECCS injection/spray subsystem, locations susceptible to gas accumulation are sufficiently filled with water.

SR 3.5.3.1 from:

Verify the RCIC System piping is filled with water from the pump discharge valve to the injection valve.

to:

Verify the RCIC System locations susceptible to gas accumulation are sufficiently filled with water.

New "Note" to SR 3.5.1.2, SR 3.5.2.4, SR 3.5.3.2, and SR 3.6.1.7.1 A new "Note" will be added to SR 3.5.1.2, SR 3.5.2.4, SR 3.5.3.2, and SR 3.6.1.7.1 which states:

Not required to be met for system vent flow paths opened under administrative control.

Editorial changes - Renumbered SRs In several cases, because new SRs were added, the following SRs needed to be renumbered.

With inclusion of new SR 3.6.1.7.2, current SRs 3.6.1.7.2 and SR 3.6.1.7.3 have been renumbered to SRs 3.6.1.7.3 and SR 3.6.1.7.4, respectively.

With the inclusion of new SR 3.6.2.3.2 current SR 3.6.2.3.2 has been renumbered to SR 3.6.2.3.3.

BASES Changes The associated TS SR Bases language for the above are revised to state the purpose of the SR, discuss methods of identifying locations susceptible to gas accumulation, discuss gas volume acceptance criteria, discuss methods for performing the SR consistent with licensee actions and on-going programs related to GL 2008-01, and describe the SR frequency. In addition, the TS LCO Bases language are revised to describe what is required for Operability of the systems and reiterate the importance of gas management.

3.2 Evaluation The new language for the SRs was developed using licensee responses to GL 2008-01 and the NRC discussion contained in Task Interface Agreement (TIA) 2008-03, "Emergency Core Cooling System (ECCS) Voiding Relative To Compliance With Surveillance Requirements (SR) 3.5.1.1, 3.5.2.3, and 3.5.3.1" (ADAMS Accession No. ML082560209). Many of the GL 2008-01 responses stated that licensees identified system locations susceptible to gas accumulation. In the TIA, the NRC stated that the intent of the TS SRs, which state "full of water," may be met if the licensee can establish, through an Operability Determination, that there is a reasonable expectation that the system in question will perform its specified safety function. Therefore the phrase, "sufficiently filled with water," was recommended for the proposed TS changes. In the TS, "sufficiently filled with water is understood to mean "sufficiently filled with water to support Operability." The regulation at 10 CFR 50.36(c)(3),

Surveillance requirements," states, in part, that one of the purposes of the SR is to verify that the LCO is met. Therefore, the new SR language, "Verify the [system name] locations susceptible to gas accumulation are sufficiently filled with water," is acceptable since this language will allow the licensee to make a conclusion as to whether or not a system is operable.

The NRC staff has concluded that the proposed SRs meet the regulatory requirements of 10 CFR 50.36 because they provide assurance that the necessary quality of systems and components will be maintained and that the LCOs will be met. Therefore, the NRC staff concludes the proposed changes are acceptable.

The language for the notes that state that the SR does not have to be performed until 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after reactor steam dome pressure < the RHR cut in permissive pressure is acceptable because the note provides a limited time to perform the Surveillance after entering the Applicability of the LCO; however, under the STS usage rules (STS Section 1.4), the requirement to manage gas accumulation is not affected. Licensees must have confidence that the SR can be met or the LCO must be declared not met.

The language for the notes that allow the SRs to not be met for system vent flow paths opened under administrative control is necessary to allow the licensee to credit administratively controlled manual action, to close the system vent flow path, in order to maintain system Operability during system venting and performance of the proposed gas accumulation SR.

Therefore the NRC staff has concluded that the addition of the proposed note is acceptable.

The NRC staff has concluded that the renumbering of the SRs to reflect the addition of new SRs are editorial in nature, and therefore, are acceptable.

The regulation at 10 CFR 50.36(a)(1) states, in part: "A summary statement of the bases or reasons for such specifications ... shall also be included in the application, but shall not become part of the technical specifications." The licensee may make changes to the TS Bases without prior NRC staff review and approval in accordance with the TS Bases Control Program TS 5.5.11. Accordingly, along with the proposed TS changes, the licensee also submitted TS Bases changes corresponding to the proposed TS changes. The NRC staff determined that TS Bases changes are consistent with the proposed TS changes and provide the purpose for each requirement in the specification consistent with the Commission's Final Policy Statement on Technical Specifications Improvements for Nuclear Power Reactors dated July 22, 1993 (58 FR 39132).

Based on the above, the NRC staff has concluded that the proposed TS, SR, and Bases changes are acceptable.

4.0 STATE CONSULTATION

In accordance with the Commission's regulations, the Mississippi State official was notified of the proposed issuance of the amendment. The State official had no comments.

5.0 ENVIRONMENTAL CONSIDERATION

The amendment changes a requirement with respect to installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20. The NRC staff has determined that the amendment involves no significant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite, and that there is no significant increase in individual or cumulative occupational radiation exposure. The Commission has previously issued a proposed finding that the amendment involves no significant hazards consideration, and there has been no public comment on such finding published in the Federal Register on February 17, 2015 (80 FR 8360). Accordingly, the amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9).

Pursuant to 10 CFR 51.22(b ), no environmental impact statement or environmental assessment need be prepared in connection with the issuance of the amendment.

6.0 CONCLUSION

The Commission has concluded, based on the considerations discussed above, that: (1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, (2) there is reasonable assurance that such activities will be conducted in compliance with the Commission's regulations, and (3) the issuance of the amendments will not be inimical to the common defense and security or to the health and safety of the public.

Principal Contributor: M. Hamm Date: May 12, 2015

ML15104A623 OFFICE NRR/DORL/LPL4-2/PM NRR/DORL/LPL4-2/LA NRR/DSS/STSB/BC NAME AWang PBlechman RElliott DATE 4/23/15 4/20/15 4/30/15 OFFICE OGC- NLO NRR/DORL/LPL4-2/BC NRR/DORL/LPL4-2/PM NAME STurk MKhanna AWang DATE 4/29/15 5/4/15 5/12/15

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