ML21194A285

Technical Specification, Chapter 3.6, Containment Systems

ML21194A285
Person / Time
Site:	Callaway
Issue date:	06/22/2021
From:	Ameren Missouri
To:	Office of Nuclear Reactor Regulation
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ULNRC-06673
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CHAPTER TABLE OF CONTENTS CHAPTER 3.6 CONTAINMENT SYSTEMS Section Page 3.6.1 Containment ....................................................................................................... 3.6-1 ACTIONS ........................................................................................................ 3.6-1 SURVEILLANCE REQUIREMENTS ............................................................... 3.6-2 3.6.2 Containment Air Locks ........................................................................................ 3.6-3 ACTIONS ........................................................................................................ 3.6-3 SURVEILLANCE REQUIREMENTS ............................................................... 3.6-6 3.6.3 Containment Isolation Valves ............................................................................. 3.6-7 ACTIONS ........................................................................................................ 3.6-7 SURVEILLANCE REQUIREMENTS ............................................................. 3.6-13 3.6.4 Containment Pressure ...................................................................................... 3.6-16 ACTIONS ...................................................................................................... 3.6-16 SURVEILLANCE REQUIREMENTS ............................................................. 3.6-16 3.6.5 Containment Air Temperature ........................................................................... 3.6-17 ACTIONS ...................................................................................................... 3.6-17 SURVEILLANCE REQUIREMENTS ............................................................. 3.6-17 3.6.6 Containment Spray and Cooling Systems ....................................................... 3.6-18 ACTIONS ...................................................................................................... 3.6-18 SURVEILLANCE REQUIREMENTS ............................................................. 3.6-19 3.6.7 Recirculation Fluid pH Control (RFPC) System ................................................ 3.6-22 ACTIONS ...................................................................................................... 3.6-22 SURVEILLANCE REQUIREMENTS ............................................................. 3.6-22 CALLAWAY PLANT 3.6-i

CHAPTER TABLE OF CONTENTS (Continued)

Section Page CALLAWAY PLANT 3.6-ii

Containment 3.6.1 3.6 CONTAINMENT SYSTEMS 3.6.1 Containment LCO 3.6.1 Containment shall be OPERABLE.

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

ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME A. Containment inoperable. A.1 Restore containment to 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> OPERABLE status.

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 /> CALLAWAY PLANT 3.6-1 Amendment No. 133

Containment 3.6.1 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.6.1.1 Perform required visual examinations and leakage In accordance with rate testing except for containment air lock testing, in the Containment accordance with the Containment Leakage Rate Leakage Rate Testing Program. Testing Program SR 3.6.1.2 Verify containment structural integrity in accordance In accordance with with the Containment Tendon Surveillance Program. the Containment Tendon Surveillance Program CALLAWAY PLANT 3.6-2 Amendment No. 133

Containment Air Locks 3.6.2 3.6 CONTAINMENT SYSTEMS 3.6.2 Containment Air Locks LCO 3.6.2 Two containment air locks shall be OPERABLE.

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

ACTIONS

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NOTES NOTE -----------------------------------------------------------

1. Entry and exit is permissible to perform repairs on the affected air lock components.

2. Separate Condition entry is allowed for each air lock.

3. Enter applicable Conditions and Required Actions of LCO 3.6.1, "Containment," when air lock leakage results in exceeding the overall containment leakage rate.

COMPLETION CONDITION REQUIRED ACTION TIME A. One or more containment -------------------- NOTE -------------------

air locks with one 1. Required Actions A.1, A.2, containment air lock door and A.3 are not applicable if both inoperable. doors in the same air lock are inoperable and Condition C is entered.

2. Entry and exit is permissible for 7 days under administrative controls if both air locks are inoperable.

A.1 Verify the OPERABLE 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> door is closed in the affected air lock.

AND (continued)

CALLAWAY PLANT 3.6-3 Amendment No. 133

Containment Air Locks 3.6.2 ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME A. (continued) A.2 Lock the OPERABLE 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> door closed in the affected air lock.

AND A.3 ------------ NOTE -----------

Air lock doors in high radiation areas may be verified locked closed by administrative means.

Verify the OPERABLE Once per 31 days door is locked closed in the affected air lock.

B. One or more containment -------------------- NOTE -------------------

air locks with containment 1. Required Actions B.1, B.2, air lock interlock mechanism and B.3 are not applicable if inoperable. both doors in the same air lock are inoperable and Condition C is entered.

2. Entry and exit of containment is permissible under the control of a dedicated individual.

B.1 Verify an OPERABLE 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> door is closed in the affected air lock.

AND B.2 Lock an OPERABLE 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> door closed in the affected air lock.

AND (continued)

CALLAWAY PLANT 3.6-4 Amendment 133

Containment Air Locks 3.6.2 ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME B. (continued) B.3 ------------ NOTE -----------

Air lock doors in high radiation areas may be verified locked closed by administrative means.

Verify an OPERABLE Once per 31 days door is locked closed in the affected air lock.

C. One or more containment C.1 Initiate action to evaluate Immediately air locks inoperable for overall containment reasons other than leakage rate per Condition A or B. LCO 3.6.1.

AND C.2 Verify a door is closed in 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> the affected air lock.

AND C.3 Restore air lock to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> OPERABLE status.

D. Required Action and D.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 D.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 /> CALLAWAY PLANT 3.6-5 Amendment 133

Containment Air Locks 3.6.2 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY

---

NOTES --------------------------

SR 3.6.2.1 1. An inoperable air lock door does not invalidate the previous successful performance of the overall air lock leakage test.

2. Results shall be evaluated against acceptance criteria applicable to SR 3.6.1.1.

Perform required air lock leakage rate testing in In accordance with accordance with the Containment Leakage Rate the Containment Testing Program. Leakage Rate Testing Program SR 3.6.2.2 Verify only one door in the air lock can be opened at a In accordance time. with the Surveillance Frequency Control Program CALLAWAY PLANT 3.6-6 Amendment No. 202

Containment Isolation Valves 3.6.3 3.6 CONTAINMENT SYSTEMS 3.6.3 Containment Isolation Valves LCO 3.6.3 Each containment isolation valve shall be OPERABLE.

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

ACTIONS

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NOTES NOTE -----------------------------------------------------------

1. Penetration flow path(s) except for containment shutdown purge valve flow paths may be unisolated intermittently under administrative controls.

2. Separate Condition entry is allowed for each penetration flow path.

3. Enter applicable Conditions and Required Actions for systems made inoperable by containment isolation valves.

4. Enter applicable Conditions and Required Actions of LCO 3.6.1, "Containment," when isolation valve leakage results in exceeding the overall containment leakage rate acceptance criteria.

ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME A. -------------- NOTE ------------- A.1 Isolate the affected 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> Only applicable to penetration flow path by penetration flow paths with use of at least one closed two containment isolation and de-activated valves. automatic valve, closed

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manual valve, blind One or more penetration flange, or check valve flow paths with one with flow through the containment isolation valve valve secured.

inoperable except for containment purge valve AND leakage not within limit.

(continued)

CALLAWAY PLANT 3.6-7 Amendment No. 133

Containment Isolation Valves 3.6.3 ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME A. (continued) A.2 ------------ NOTE -----------

1. Isolation devices in high radiation areas may be verified by use of administrative means.

2. Isolation devices that are locked, sealed or otherwise secured may be verified by administrative means.

Verify the affected Once per 31 days penetration flow path is for isolation devices isolated. outside containment AND Prior to entering MODE 4 from MODE 5 if not performed within the previous 92 days for isolation devices inside containment (continued)

CALLAWAY PLANT 3.6-8 Amendment 133

Containment Isolation Valves 3.6.3 ACTIONS (continued)

COMPLETION CONDITION REQUIRED ACTION TIME B. -------------- NOTE ------------- B.1 Isolate the affected 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> Only applicable to penetration flow path by penetration flow paths with use of at least one closed two containment isolation and de-activated valves. automatic valve, closed

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manual valve, or blind flange.

One or more penetration flow paths with two containment isolation valves inoperable except for containment purge valve leakage not within limit.

(continued)

CALLAWAY PLANT 3.6-9 Amendment No. 133

Containment Isolation Valves 3.6.3 ACTIONS (continued)

COMPLETION CONDITION REQUIRED ACTION TIME C. -------------- NOTE ------------- C.1 Isolate the affected 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> Only applicable to penetration flow path by penetration flow paths with use of at least one closed only one containment and de-activated isolation valves and a automatic valve, closed closed system. manual valve, or blind

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flange.

One or more penetration AND flow paths with one containment isolation valve inoperable. C.2 ------------ NOTES ----------

1. Isolation devices in high radiation areas may be verified by use of administrative means.

2. Isolation devices that are locked, sealed, or otherwise secured may be verified by administrative means.

Verify the affected Once per 31 days penetration flow path is isolated.

(continued)

CALLAWAY PLANT 3.6-10 Amendment No. 133

Containment Isolation Valves 3.6.3 ACTIONS (continued)

COMPLETION CONDITION REQUIRED ACTION TIME D. One or more penetration D.1 Isolate the affected 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> flow paths with one or more penetration flow path by containment purge valves use of at least one closed not within leakage limits. and de-activated automatic valve or blind flange.

AND D.2 ------------ NOTE -----------

1. Isolation devices in high radiation areas may be verified by use of administrative means.

2. Isolation devices that are locked, sealed, or otherwise secured may be verified by administrative means.

Verify the affected Once per 31 days penetration flow path is for isolation devices isolated. outside containment AND (continued)

CALLAWAY PLANT 3.6-11 Amendment No. 133

Containment Isolation Valves 3.6.3 ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME D. (continued) Prior to entering MODE 4 from MODE 5 if not performed within the previous 92 days for isolation devices inside containment AND D.3 Perform SR 3.6.3.6 or Once per 92 days SR 3.6.3.7 for the resilient seal purge valves closed to comply with Required Action D.1.

E. Required Action and E.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 E.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 /> CALLAWAY PLANT 3.6-12 Amendment 133

Containment Isolation Valves 3.6.3 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.6.3.1 Verify each containment shutdown purge valve is In accordance sealed closed or closed and blind flange installed with the except for one purge valve in a penetration flow path Surveillance while in Condition D of this LCO. Frequency Control Program AND Prior to entering MODE 4 from MODE 5 if not performed within the previous 92 days for isolation devices inside containment SR 3.6.3.2 Verify each containment mini-purge valve is closed, In accordance except when the containment mini-purge valves are with the open for pressure control, ALARA or air quality Surveillance considerations for personnel entry, or for Frequency Surveillances that require the valves to be open. Control Program SR 3.6.3.3 --------------------------------- NOTE ----------------------------

Valves and blind flanges in high radiation areas may be verified by use of administrative controls.

Verify each containment isolation manual valve and In accordance blind flange that is located outside containment and with the not locked, sealed, or otherwise secured and required Surveillance to be closed during accident conditions is closed, Frequency except for containment isolation valves that are open Control Program under administrative controls.

(continued)

CALLAWAY PLANT 3.6-13 Amendment No. 202

Containment Isolation Valves 3.6.3 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.6.3.4 --------------------------------- NOTE ----------------------------

Valves and blind flanges in high radiation areas may be verified by use of administrative means.

Verify each containment isolation manual valve and Prior to entering blind flange that is located inside containment and not MODE 4 from locked, sealed, or otherwise secured and required to MODE 5 if not be closed during accident conditions is closed, except performed within for containment isolation valves that are open under the previous administrative controls. 92 days SR 3.6.3.5 Verify the isolation time of each automatic power In accordance with operated containment isolation valve is within limits. the INSERVICE TESTING PROGRAM SR 3.6.3.6 --------------------------------- NOTE ----------------------------

Only required to be performed when containment shutdown purge valve blind flanges are installed.

Perform leakage rate testing for containment In accordance shutdown purge valves with resilient seals and with the associated blind flanges. Surveillance Frequency Control Program AND Following each reinstallation of the blind flange (continued)

CALLAWAY PLANT 3.6-14 Amendment No. 222

Containment Isolation Valves 3.6.3 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.6.3.7 --------------------------------- NOTE ----------------------------

Only required to be performed for the containment shutdown purge valves when associated blind flanges are removed.

Perform leakage rate testing for containment In accordance mini-purge and shutdown purge valves with resilient with the seals. Surveillance Frequency Control Program AND Within 92 days after opening the valve SR 3.6.3.8 Verify each automatic containment isolation valve that In accordance is not locked, sealed or otherwise secured in position, with the actuates to the isolation position on an actual or Surveillance simulated actuation signal. Frequency Control Program CALLAWAY PLANT 3.6-15 Amendment No. 202

Containment Pressure 3.6.4 3.6 CONTAINMENT SYSTEMS 3.6.4 Containment Pressure LCO 3.6.4 Containment pressure shall be -0.3 psig and + 1.5 psig.

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

ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME A. Containment pressure not A.1 Restore containment 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> within limits. pressure to within limits.

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 3.6.4.1 Verify containment pressure is within limits. In accordance with the Surveillance Frequency Control Program CALLAWAY PLANT 3.6-16 Amendment No. 202

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 COMPLETION CONDITION REQUIRED ACTION TIME A. Containment average air A.1 Restore containment 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> temperature not within limit. average air temperature to within limit.

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 CALLAWAY PLANT 3.6-17 Amendment No. 202

Containment Spray and Cooling Systems 3.6.6 3.6 CONTAINMENT SYSTEMS 3.6.6 Containment Spray and Cooling Systems LCO 3.6.6 Two containment spray trains and two containment cooling trains shall be OPERABLE.

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

ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME A. One containment spray A.1 Restore containment 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> train inoperable. spray train to OPERABLE status. AND 10 days from discovery of failure to meet the LCO 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 of Condition A not AND met.

B.2 Be in MODE 5. 84 hours9.722222e-4 days <br />0.0233 hours <br />1.388889e-4 weeks <br />3.1962e-5 months <br /> C. One containment cooling C.1 Restore containment 7 days train inoperable. cooling train to OPERABLE status. AND 10 days from discovery of failure to meet the LCO (continued)

CALLAWAY PLANT 3.6-18 Amendment No. 133

Containment Spray and Cooling Systems 3.6.6 ACTIONS (continued)

COMPLETION CONDITION REQUIRED ACTION TIME D. Required Action and D.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 of Condition C not AND met.

D.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 /> E. Two containment spray E.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 /> trains inoperable.

AND OR E.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 /> Two containment cooling trains inoperable.

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.6.6.1 --------------------------------- NOTE ----------------------------

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

Verify each containment spray manual, power In accordance operated, and automatic valve in the flow path that is with the not locked, sealed, or otherwise secured in position is Surveillance in the correct position. Frequency Control Program SR 3.6.6.2 Operate each containment cooling train fan unit for In accordance 15 minutes. with the Surveillance Frequency Control Program (continued)

CALLAWAY PLANT 3.6-19 Amendment No. 213

Containment Spray and Cooling Systems 3.6.6 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.6.6.3 Verify each containment cooling train cooling water In accordance flow rate is 2200 gpm. with the Surveillance Frequency Control Program SR 3.6.6.4 Verify each containment spray pump's developed In accordance with head at the flow test point is greater than or equal to the INSERVICE the required developed head. TESTING PROGRAM SR 3.6.6.5 Verify each automatic containment spray valve in the In accordance flow path that is not locked, sealed, or otherwise with the secured in position, actuates to the correct position on Surveillance an actual or simulated actuation signal. Frequency Control Program SR 3.6.6.6 Verify each containment spray pump starts In accordance automatically on an actual or simulated actuation with the signal. Surveillance Frequency Control Program SR 3.6.6.7 Verify each containment cooling train starts In accordance automatically and minimum cooling water flow rate is with the established on an actual or simulated actuation Surveillance signal. Frequency Control Program SR 3.6.6.8 Verify each spray nozzle is unobstructed. In accordance with the Surveillance Frequency Control Program (continued)

CALLAWAY PLANT 3.6-20 Amendment No. 222

Containment Spray and Cooling Systems 3.6.6 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.6.6.9 Verify containment spray locations susceptible to gas In accordance accumulation are sufficiently filled with water. with the Surveillance Frequency Control Program CALLAWAY PLANT 3.6-21 Amendment No. 213

Recirculation Fluid pH Control System 3.6.7 3.6 CONTAINMENT SYSTEMS 3.6.7 Recirculation Fluid pH Control (RFPC) System LCO 3.6.7 The RFPC System shall be OPERABLE.

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

ACTIONS COMPLETION CONDITION REQUIRED ACTION TIME A. RFPC System inoperable. A.1 Restore RFPC System 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> to OPERABLE status.

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. 84 hours9.722222e-4 days <br />0.0233 hours <br />1.388889e-4 weeks <br />3.1962e-5 months <br /> SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.6.7.1 Verify the integrity of the RFPC System. In accordance with the Surveillance Frequency Control Program (continued)

CALLAWAY PLANT 3.6-22 Amendment No. 213 l

Recirculation Fluid pH Control System 3.6.7 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.6.7.2 Verify the RFPC System ensures an equilibrium sump In accordance pH 7.1. with the Surveillance Frequency Control Program CALLAWAY PLANT 3.6-23 Amendment No. 213 l