ML24240A081

License Amendment Request to Change Technical Specification 3.6.5, Containment Air Temperature Actions - Revised Completion Time

ML24240A081
Person / Time
Site:	Farley
Issue date:	08/27/2024
From:	Coleman J Southern Nuclear Operating Co
To:	Office of Nuclear Reactor Regulation, Document Control Desk
References
Download: ML24240A081 (1)

Text

.. Southern Nuclear Regulatory Affairs 3535 Colonnade Parkw ay Birmingham, AL 35243 205 992 5000

August27,2024 NL-24-0329 10 CFR 50.90

ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Washington, D. C. 20555-0001

Joseph M. Farley Nuclear Plant Units 1 and 2 Docket Nos. 50-348 and 50-364

Subject:

License Amendment Request to Change Technical Specification 3.6.5, "Containment Air Temperature " Actions - Revised Completion Time

On July 18, 2024, Southern Nuclear Operating Company (SNC) requested a license amendment to the Technical Specifications (TS) for Joseph M. Farley Nuclear Plant (FNP),

Units 1 and 2 renewed facility operating licenses NPF-2 and NPF-8, respectively (ADAMS Accession No. ML24201A108). The requested amendment would revise the operating license, Appendix A, Technical Specification (TS) 3.6.5, Containment Air Temperature, Actions upon exceeding the containment average air temperature limit and remove an expired Limiting Condition for Operation Note.

SNC is providing a revised format for the TS 3.6.5 Required Action A.3 Completion Time with the replacement pages in Enclosures 1 and 2 to this letter. Enclosure 3 provides corresponding TS 3.6.5 Bases revisions to be concurrently implemented for information only.

SNC continues to request expedited review and approval of the proposed license amendment by August 29, 2024. This license amendment will be implemented promptly upon issuance.

The replacement pages provided in Enclosures 1, 2, and 3 to this letter do not impact the regulatory evaluation (including the Significant Hazards Consideration Determination) or environmental considerations for the proposed changes provided in the July 18, 2024, submittal.

This letter contains no regulatory commitments. This letter has been reviewed and determined not to contain security-related information.

In accordance with 10 CFR 50.91, SNC is notifying the State of Alabama of this license amendment request by transmitting a copy of this letter and enclosures to the designated State Official.

U. S. Nuclear Regulatory Commission NL-24-0329 Page 2

If you have any questions, please contact Ryan Joyce at 205-992-6468.

I declare under penalty of perjury that the foregoing is true and correct.

Executed on the 27 th day of August 2024.

Respectfully submitted,

~~

Jamie M. Coleman Director, Regulatory Affairs Southern Nuclear Operating Company

JMC/was/cbg

Enclosure 1: Revised Technical Specification Page Markups Enclosure 2: Revised Technical Specification Pages Enclosure 3: Revised Technical Specification Bases Markups (for information only)

cc: NRC Regional Administrator, Region II NRR Project Manager - Farley 1 & 2 Senior Resident Inspector - Farley 1 & 2 Alabama - State Health Officer for the Department of Public Health RType: CFA04.054 License Amendment Request to Change Technical Specification 3.6.5, "Containment Air Temperature" Actions - Revised Completion Time

Enclosure 1

Revised Technical Specification Page Markups Containment Air Temperature 3.6.5

3.6 CONTAINMENT SYSTEMS

3.6.5 Containment Air Temperature

LCO 3.6.5 Containment average air temperature shall be ::::; 120° F.

Containment average air temperature shall be< 122°F until 0600 hours0.00694 days <br />0.167 hours <br />9.920635e-4 weeks <br />2.283e-4 months <br /> on September 9, 2023

APPLICABILITY: MODES 1, 2, 3, and 4.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME

A. Containment average air _A_.1 ___ V_e_rif~y_c_o_n_ta_in_m_en_t 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> temperature not within average air temperature limit. ::::; 122 ° F.

Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter

AND

A.2 Verify refueling water 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> storage tank temperature

< 100 ° F. AND

Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter

AND A. ~4 Restore containment ----------NOTE----------

average air temperature Not to exceed 7 days to within limit. cumulative in calendar year

7 days 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />

Farley Units 1 and 2 3.6.5-1 Amendment No. _-247-_ (Unit 1)

Amendment No. _-244 _ (Unit 2)

Containment Air Temperature 3.6.5

ACTIONS (continued CONDITION REQUIRED ACTION COMPLETION TIME

B. Required Action and B.1 Be in MODE 3. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> associated Completion Time not met. AND

B.2 Be in MODE 5. 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />

SURVEILLANCE REQUIREMENTS

SURVEILLANCE FREQUENCY

SR 3.6.5.1 Verify containment average air temperature is within In accordance limit. with the Surveillance Frequency Control Program

Farley Units 1 and 2 3.6.5-2 Amendment No. _~ _ (Unit 1)

Amendment No. _~ _ (Unit 2)

License Amendment Request to Change Technical Specification 3.6.5, "Containment Air Temperature" Actions - Revised Completion Time

Enclosure 2

Revised Technical Specification Pages Containment Air Temperature 3.6.5

3.6 CONTAINMENT SYSTEMS

3.6.5 Containment Air Temperature

LCO 3.6.5 Containment average air temperature shall be ::::; 120° F.

APPLICABILITY: MODES 1, 2, 3, and 4.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME

A. Containment average air A.1 Verify containment 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> temperature not within average air temperature limit. ::::; 122 ° F.

Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter

AND

A.2 Verify refueling water 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> storage tank temperature

1QQ ° F. AND

Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter

AND A.3 Restore containment ----------NOTE----------

average air temperature Not to exceed 7 days to within limit. cumulative in calendar year

7 days

Farley Units 1 and 2 3.6.5-1 Amendment No. 250 (Unit 1)

Amendment No. 24 7 (Unit 2)

Containment Air Temperature 3.6.5

ACTIONS (continued CONDITION REQUIRED ACTION COMPLETION TIME

B. Required Action and B.1 Be in MODE 3. 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> associated Completion Time not met. AND

B.2 Be in MODE 5. 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />

SURVEILLANCE REQUIREMENTS

SURVEILLANCE FREQUENCY

SR 3.6.5.1 Verify containment average air temperature is within In accordance limit. with the Surveillance Frequency Control Program

Farley Units 1 and 2 3.6.5-2 Amendment No. 250 (Unit 1)

Amendment No. 24 7 (Unit 2)

License Amendment Request to Change Technical Specification 3.6.5, "Containment Air Temperature" Actions - Revised Completion Time

Enclosure 3

Revised Technical Specification Bases Markups (for information only)

Containment Air Temperature B 3.6.5

BASES

LCO During a OBA, with an initial containment average air temperature less than or equal to the LCO temperature limit, the resultant containment structure peak accident temperature is maintained below the containment design temperature. As a result, the ability of containment to perform its design function is ensured.

APPLICABILITY In MODES 1, 2, 3, and 4, a OBA could cause a release of radioactive material to containment. In MODES 5 and 6, the probability and consequences of these events are reduced due to the pressure and temperature limitations of these MODES. Therefore, maintaining containment average air temperature within the limit is not required in MODE 5 or 6.

ACTIONS A.1, A.2, and A.3

When containment average air temperature is not within the limit of the LCO, it must be restored to 'Nithin limit 'Nithin 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> the containment average air temperature must be verified to be :::: 122°F within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> and once every 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter (Required Action A.1 ). Required Action A.2 requires verification that the refueling water storage tank (RWST) temperature is :::: 100°F to provide additional margin for the containment post-accident mass and energy release.

The 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> Completion Time is reasonable to verify the containment average air temperature and the RWST temperature. The once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter is adequate to confirm the temperatures remain within the Required Action limits.

+ms-Required Action A.3 is necessary to return operation to within the bounds of the containment analysis. The 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> ? day Completion Time is acceptable considering the sensitivity of the analysis to variations in this parameter and provides sufficient time to correct minor problems. The Completion Time for Required Action A.3 is modified by a Note that limits time within the Required Action such that the Completion Time also expires when the cumulative time reaches 7 days in the calendar year. The cumulative time is tracked as actual time operating in Condition A and initially begins from the initial Condition A entry in the calendar year. Each entry and exit time for Condition A are tracked and added to the prior cumulative time(s).

Short-term exceedance of the containment average air temperature limit has been evaluated and determined to be of minimal impact to safety (Ref. 3).

Farley Units 1 and 2 B 3.6.5-3 Revision a_

Containment Air Temperature B 3.6.5

BASES

ACTIONS B.1 and B.2 (continued)

If the containment average air temperature cannot be restored to within its limit within the required Completion Time, the plant must be brought to a MODE in which the LCO does not apply. To achieve this status, the plant must be brought to at least MODE 3 within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and to MODE 5 within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />. The allowed Completion Times are reasonable, based on operating experience, to reach the required plant conditions from full power conditions in an orderly manner and without challenging plant systems.

SURVEILLANCE SR 3.6.5.1 REQUIREMENTS Verifying that containment average air temperature is within the LCO limit ensures that containment operation remains within the limit assumed for the containment analyses. In order to determine the containment average air temperature, an arithmetic average is calculated using measurements taken at four of the following sensor locations with at least two being containment air cooler intake sensors:

Instrument Number Sensor Location

TE3187 E, F, G, & H Containment Air Cooler Intake TE3188 H & I Lower Compartment TE3188 J Reactor (lower)

The Surveillance Frequency is controlled under the Surveillance Frequency Control Program.

REFERENCES 1. FSAR, Section 6.2.

2. 10 CFR 50.49.

3. Amendment Nos. ###-and ##-# for Farley, Units 1 and 2, respectively, dated Month day, year.

Farley Units 1 and 2 B 3.6.5-4 Revision ~ _