ML17223A626

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Response to Request for Additional Information Application to Revise Technical Specifications to Adopt TSTF-542, Reactor Pressure Vessel Water Inventory Control, Revision 2
ML17223A626
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 08/11/2017
From: David Gudger
Exelon Generation Co
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
CAC MF9138, CAC MF9139
Download: ML17223A626 (28)
v • d • e


Text

Exelon Generation 200 Exelon Way Kennett Square. PA 19348 www.exeloncorp.com 10 CFR 50.90 August 11, 2017 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555-0001 Peach Bottom Atomic Power Station, Units 2 and 3 Renewed Facility Operating License Nos. DPR-44 and DPR-56 NRC Docket Nos. 50-277 and 50-278

Subject:

Response to Request for Additional Information Application to Revise Technical Specifications to Adopt TSTF-542, "Reactor Pressure Vessel Water Inventory Control," Revision 2

References:

1) Letter from James Barstow (Exelon Generation Company, LLC) to U.S.

Nuclear Regulatory Commission -Application to Revise Technical Specifications to Adopt TSTF-542, "Reactor Pressure Vessel Water Inventory Control," Revision 2, dated January 30, 2017 (ML17030A302)

2) U.S. Nuclear Regulatory Commission Electronic Mail Message from R. B.

Ennis to Richard Gropp (Exelon Generation Company, LLC) - Peach Bottom Units 2 and 3 - Request for Additional Information - TSTF-542 Amendment Request (CACs MF9138 and MF9139), dated August 2, 2017 (ML17214A616)

By letter dated January 30, 2017, (Reference 1), Exelon Generation Company, LLC, (Exelon) submitted a License Amendment Request (LAR) for Peach Bottom Atomic Power Station (PBAPS), Units 2 and 3, requesting changes to the Technical Specifications (TS) requirements related to Operations with a Potential for Draining the Reactor Vessel (OPDRVs) with new requirements on Reactor Pressure Vessel Water Inventory Control (RPV WIC) to protect Safety Limit 2.1.1.3. Safety Limit 2.1.1.3 requires reactor vessel water level to be greater than the top of active irradiated fuel. The requested TS changes were submitted based on Technical Specifications Task Force (TSTF) Traveler TSTF-542, "Reactor Pressure Vessel Water Inventory Control," Revision 2.

In a U.S. Nuclear Regulatory Commission (NRC) electronic mail message dated August 2, 2017, the NRC indicated that it had reviewed the information submitted in the Reference 1 submittal pertaining to the proposed LAR and requested additional information to support its continued review. The Reference 2 electronic mail message identified NRC questions, which were further discussed during an August 2, 2017, teleconference between Exelon and NRC representatives.

Accordingly, Attachment 1 provides Exelon's response to the draft request for additional information contained in Reference 2. Attachment 2 contains copies of updated TS mark-up pages in response the NRC's questions. The updated TS mark-up pages supersede those same pages that were submitted in the Reference 1 letter.

U.S. Nuclear Regulatory Commission Response to Request for Additional Information License Amendment Request Application to Revise TS to Adopt TSTF-542 Docket Nos. 50-277 and 50-278 August 11, 2017 Page 2 In addition, in order to more effectively facilitate the implementation of the amendments if approved by NRC, Exelon is requesting a change in the implementation schedule. Currently, in the Reference 1 letter, Exelon requested the following:

EGG requests approval of the proposed amendment by September 30, 2017 in support of the Fa/12017 Unit 3 refueling outage. Once approved, the amendments shall be implemented on both units prior to the next refueling outage on either unit.

Exelon is now requesting that the amendments be implemented based on the following proposed implementation schedule:

Exelon requests approval of the proposed amendments by September 30, 2017, and if approved the amendments shall be implemented on both units prior to the Unit 2 Fall 2018 refueling outage (P2R22}.

Exelon has reviewed the information supporting a finding of No Significant Hazards Consideration and the Environmental Consideration provided to the NRG in the Reference 1 letter. The additional information provided in this submittal does not affect the bases for concluding that the proposed license amendments do not involve a significant hazards consideration. In addition, the additional information provided in this submittal does not affect the bases for concluding that neither an environmental impact statement nor an environmental assessment needs to be prepared in connection with the proposed amendments.

There are no regulatory commitments contained in this response.

If you have any questions or require additional information, please contact Richard Gropp at (610) 765-5557.

I declare under penalty of perjury that the foregoing is true and correct. Executed on the 11th day of August 2017.

Resj?ctfully, U.i;,..-"J-( ~ J y---

David T. Gudger Manager, Licensing and Regulatory Affairs Exelon Generation Company, LLC Attachments: 1) Response to Request for Additional Information -Application to Revise Technical Specifications to Adopt TSTF-542, "Reactor Pressure Vessel Water Inventory Control," Revision 2

2) Updated Technical Specifications Mark-up Pages cc: NRC Region I, Regional Administrator NRC Project Manager, NRA - Peach Bottom NRC Senior Resident Inspector - Peach Bottom S. T. Gray, State of Maryland R. A. Janati, Bureau of Radiation Protection, Commonwealth of Pennsylvania

ATTACHMENT 1 PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 NRC Docket Nos. 50-277 and 50-278 Renewed Facility Operating License Nos.

DPR-44 and DPR-56 Response to Request for Additional Information Application to Revise Technical Specifications to Adopt TSTF-542, "Reactor Pressure Vessel Water Inventory Control," Revision 2 Response to RAI Application to Revise TS to Adopt TSTF-542 Docket Nos. 50-277 and 50-278 Page 1 of 7 Response to Request for Additional Information Application to Revise Technical Specifications to Adopt TSTF-542. "Reactor Pressure Vessel Water Inventory Control," Revision 2

Background

By letter dated January 30, 2017, (Reference 1), Exelon Generation Company, LLC, (Exelon) submitted a License Amendment Request (LAR) for Peach Bottom Atomic Power Station (PBAPS), Units 2 and 3, requesting changes to the Technical Specifications (TS) requirements related to Operations with a Potential for Draining the Reactor Vessel (OPDRVs) with new requirements on Reactor Pressure Vessel Water Inventory Control (RPV WIG) to protect Safety Limit 2.1.1.3. Safety Limit 2.1.1.3 requires reactor vessel water level to be greater than the top of active irradiated fuel. The requested TS changes were submitted based on Technical Specifications Task Force (TSTF) Traveler TSTF-542, "Reactor Pressure Vessel Water Inventory Control," Revision 2.

In a U.S. Nuclear Regulatory Commission (NRG) electronic mail message dated August 2, 2017, the NRG indicated that it had reviewed the information submitted in the Reference 1 submittal pertaining to the proposed LAR and requested additional information to support its continued review. The Reference 2 electronic mail message identified NRG questions, which were further discussed during an August 2, 2017, teleconference between Exelon and NRG representatives.

The questions from the Reference 2 electronic mail message are identified below followed by Exelon's response. The updated TS mark-up pages included in this response supersede those same pages that were submitted in the Reference 1 letter.

Technical Specifications Branch (STSB)

PBAPS-STSB-RAl-1 Please propose separate mark-up pages for each unit for pages 3.3-47a, 3.3-47b, 3.3-47c, 3.3-47d, 3.5-15, 3.5-16, 3.5-17, and 3.5-18 since PBAPS Units 2 and 3 use separate TSs.

The pages, as included in the original LAR, are labeled "PBAPS UNITS 2 & 3" at the bottom.

Response

As requested, unit-specific TS pages have been created for Pages 3.3-47a, 3.3-47b, 3.3-47c, 3.3-47d, 3.5-15, 3.5-16, 3.5-17, and 3.5-18. In addition, a minor editorial formatting change was also made to TS Page 3.3-47a for both units. Specifically, the term "Not Used" was added in the upper right-hand portion of the page to ensure consistency in TS page formatting. The updated TS pages are included in Attachment 2 of this response.

PBAPS-STSB-RAI 2 In the proposed mark-up for TS page 3.3-47b, the positioning of the "NOTE" (i.e., "Separate Condition entry is allowed for each channel") is not consistent with TSTF-542. Because of the existing placement (i.e., above the word "ACTIONS"), it appears as though the note is meant to apply to the APPLICABILITY and not the ACTIONS table of LCO 3.3.5.4. Please Response to RAI Application to Revise TS to Adopt TSTF-542 Docket Nos. 50-277 and 50-278 Page 2 of 7 provide a revised mark-up of this TS page consistent with TSTF-542 (i.e., with note located below the word "ACTIONS'J, or justify this deviation.

Response

As requested, TS Page 3.3-47b was revised for both units to relocate the "Note" to below the word "ACTIONS" as depicted below. The updated TS pages are included in Attachment 2 of this response.

Should read:

ACTIONS

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

Separate Condition entry is allowed for each channel.

CONDITION REQUIRED ACTION COMPLETION TIM E PBAPS-STSB-RAI 3 The PBAPS Unit 2 TS mark-up for page 3.3-54 has what appears to be an open parentheses mark after Function 5.a of Table 3.3.6.1-1, page 3 of 3. This differs from the mark-up for PBAPS Unit 3 and is not consistent with TSTF-542. Please provide a revised mark-up of this TS page consistent with TSTF-542, or justify this deviation.

Response

As requested, TS Page 3.3-54 was revised for Unit 2 to correct the discrepancy with the open parentheses marking after Function 5.a, RWCU Flow-High, on Table 3.3.6.1-1 (Page 3 of 3).

After further review, it was determined that the open parentheses marking was inadvertently placed in the wrong location on the page. The open parentheses marking should have preceded the RWCU acronym that was included in the description for Function 5, Reactor Water Cleanup RWCU) System Isolation, as depicted below. The updated Unit 2 TS page is included in of this response.

Should read:

Table 3.3.6.1-1 (page 3 of 3)

Primary Containment Isolation Instrumentation APPLICABLE CONDITIONS MODES OR REQUIRED REFERENCED OTHER CHANNELS FROM FUNCTION SPECIFIED PER TRIP REQUIRED SURVEILLANCE ALLOWABLE CONDIT IONS SYSTEM ACTION C.l REQUIREMENTS VALUE

5. Reactor Water Cleanup (RWCU) System Isolation
a. RWCU Flow-High 1, 2. 3 1 F SR 3. 3.6 . 1. 1 s 125% rated SR 3.3.6.1.3 fl ow ( 23. 0 SR 3.3.6.1. 7 i n-wc)

Response to RAI Application to Revise TS to Adopt TSTF-542 Docket Nos. 50-277 and 50-278 Page 3 of 7 PBAPS-STSB-RAI 4 The licensee proposed to add new TS LCO 3.5.4 in lieu of the marked-up TS LCO 3.5.2, "RPV Water Inventory Control," however, Exelon's proposed statement in Actions table Condition E differs from TSTF-542. In Exelon's proposal, Condition E is phrased as "Required Action and associated completion time of Condition C and D not met." In TSTF-542, Condition Eis phrased as "Required Action and associated completion time of Condition C or D not met." Please provide a revised mark-up of this TS page consistent with TSTF-542, or justify this deviation.

Response

As requested, TS Section 3.5.4, Condition Eon TS Page 3.5-17, was revised for both units as depicted below to reflect the comparable language as provided in TSTF-542. The word "and" in the statement "Required Action and associated completion time of Condition C and D not met" has been replaced with the word "or" consistent with the TSTF guidance. The updated TS pages are included in Attachment 2 of this response.

Should read:

ACTIONS (continued)

D. (continued) D.4 Initiate action to verify Immediately one Standby Gas Treatment subsystem is capable of being placed into operation.

E. Required Action and E.l Initiate action to Immediately associated Completion restore DRAIN TIME to >

Time of Condition C or 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.

D not met.

DRAIN TIME < 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />.

PBAPS-STSB-RAI 5 Exelon's proposed wording of PBAPS Surveillance Requirements (SRs) 3.5.4.4 and 3.5.4.5 differs from TSTF-542 in that the proposed SRs retain the word 'each' to describe the required EGGS injection/spray subsystem. TSTF-542 replaced SR 3.5.4.4's word 'each' with

'the' while SR 3.5.4.5's word 'each' is replaced with 'for the.' Please provide a revised mark-up of this TS page consistent with TSTF-542, or justify this deviation.

Response to RAI Application to Revise TS to Adopt TSTF-542 Docket Nos. 50-277 and 50-278 Page 4 of 7

Response

As requested, TS Surveillance Requirements (SRs) 3.5.4.4 and 3.5.4.5 on TS Page 3.5-18, were revised for both units as depicted below to reflect the wording consistent with the TSTF-542 guidance. Specifically, the word "each" was replaced with the word "the" in TS SR 3.5.4.4, and the word "each" was replaced with the phrase "for the" in TS SR 3.5.4.5. The updated TS pages are included in Attachment 2 of this response.

Should read:

SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.5.4.4 Verify, for the required ECCS In accordance i njection/spray subsystem, locations with the s usceptible to gas accumulation are Surveillance s ufficiently filled with water. Frequency Control Program.

SR 3.5.4.5 - - - - - - - - - - - - - - - - NOTE- - - - - - - - - - - - - - - - - -

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

In ac co rda nc e Verify for the required ECCS with t he injection/spray subsystem manual, power Surve illa nce operated, and automatic valve in the flow Frequency path, that is not locked, sealed, or Contr ol otherwise secured in position, is in the Pr ogram.

correct position.

PBAPS-STSB-RAI 6 Exelon's proposed wording of PBAPS SR 3.5.4.8 differs from both the TSTF-542 mark-up of SR 3.5.2.8 and PBAPS current TS SR 3.5.2.6. The TSTF-542 wording for the corresponding SR is: "Verify the required EGGS injection/spray subsystem actuates on a manual initiation signal."

The justification in the LAR on page 2 of 5 of Attachment 1 states:

EGG proposes to revise PBAPS TS Surveillance Requirement (SR) 3.5.4.8 and TS Bases 3.3.5.4 to clarify that for manual initiations PBAPS utilizes hand switches in lieu of push buttons.

There are currently no functions in PBAPS TS Table 3.3.5.1-1 for manual initiation of the Response to RAI Application to Revise TS to Adopt TSTF-542 Docket Nos. 50-277 and 50-278 Page 5 of 7 Core Spray (CS) and Low Pressure Coolant Injection (LPG/) systems. Please clarify whether the hand switches identified initiate CS and LPG/ actuation, or if these hand switches only start the pumps, requiring operators to manually align the other CS and LPG/ components for injection. Please further explain and provide additional justification for the wording proposed in the LAR.

Response

The response to this question is separated into two parts.

1) Please clarify whether the hand switches identified initiate CS and LPG/ actuation, or if these hand switches only start the pumps, requiring operators to manually align the other CS and LPG/ components for injection.
  • The Emergency Core Cooling System (ECCS) hand switches referenced in the LAA only start I stop the associated ECCS pump. Licensed Operators will manually align the ECCS train (valves) from their associated remote control switches (located in the Main Control Room (MCA)) or locally for injection as required for makeup.
2) Please further explain and provide additional justification for the wording proposed in the LAR.

The additional justification for the wording proposed in the LAA is provided below.

  • ECCS manual pushbutton actuation utilizes ECCS auto initiation logic such that use of a pushbutton will automatically actuate multiple ECCS pumps. For Residual Heat Removal (AHR), when either loop's pushbutton is armed and depressed, ALL AHR pumps will start and injection valves will align. For CS, when a loop pushbutton is armed and depressed, the associated CS loop's pumps will start and injection valves will align. ECCS manual pushbuttons provide a backup method of injection to the automatic Design Basis Accident (OBA) Loss of Coolant Accident (LOCA) response provided by the initiation logic. ECCS Manual pushbuttons are not currently required by PBAPS TS. Automatic ECCS (OBA LOCA) initiation logic is required in Modes 1, 2 and 3 and not Modes 4 and 5 (Reference Table 3.3.5.1-1 Pages 1 and 2 Functions 1a, 1b, 1c and Functions 2.a, 2.b and 2.c). Use of ECCS manual pushbuttons will exceed the expected makeup requirements of most water inventory control leaks. Each ECCS train injection capability will likely far exceed the expected makeup requirements from a water inventory control leak.
  • Use of the hand control switches for the pumps and valves from the MCA to align the required ECCS train for injection provides controlled makeup for potential water inventory control leaks. Because of the restrictions on DRAIN TIME, sufficient time will be available following an unexpected draining event to manually align and initiate ECCS train(s) to maintain Reactor Pressure Vessel (RPV) level above Top of Active Fuel (TAF).

Response to RAI Application to Revise TS to Adopt TSTF-542 Docket Nos. 50-277 and 50-278 Page 6 of 7

PBAPS-STSB-RAI 7 The required channels per function of proposed function 3.a of proposed Table 3.3.5.4-1 appears to be incorrect in two ways. Firstly, since function 3.a comes from existing PBAPS Table 3.3.6.1-1, the removed note at the bottom of the page seems to indicate that only one channel per trip system may be needed. Additionally, when compared to corresponding function of Table 3.3.5.2-1 of TSTF-542, it appears to be missing the text "In one trip system" after the numeral 2" in the 'Required Channels per Function' column.

The column header of PBAPS current TS Table 3.3.6.1-1 is entitled "REQUIRED CHANNELS PER TRIP SYSTEM" as described in the approved TSTF traveler model safety evaluation. Please provide justification for the existing markups or provide new markups for function 3.a of proposed Table 3.3.5.4-1 for each unit.

Response

Consistent with TSTF-542, PBAPS relocated the RHR Shutdown Cooling (SOC) Isolation Function 6.b, "Reactor Vessel Water level - Low (Level 3)" for Modes 4 and 5 from Primary Containment Isolation System (PCIS) Instrumentation Table 3.3.6.1-1 to Table 3.3.5.4 Function 3.a. Table 3.3.6.1-1 utilizes "REQUIRED CHANNELS PER TRIP SYSTEM" whereas Table 3.3.5.4 utilizes "REQUIRED CHANNELS PER FUNCTION." Consistent with TSTF-542, PBAPS design consists of two trip systems with two channels per trip system. The isolation function requires one channel from each trip system to initiate the isolation. The isolation function must be maintained operable to exclude RHR SOC penetration flow paths from the DRAIN TIME calculation. The isolation function is operable when one channel from each trip system is operable or tripped.

The RHR SOC penetration flow path has two series isolation valves (i.e., M0-017 and M0-018).

Either isolation valve will isolate the penetration. Operability of the isolation function requires either of these valves to be operable to isolate the penetration.

Current PBAPS TS Instrumentation Section 3.3 tables do not utilize the verbiage "in one trip system," in the "required channels" column. When the Table 3.3.6.1-1 Function 6.b was moved to Table 3.3.5.4 Function 3.a, the existing convention was maintained. This deviation is administrative in nature and does not conflict with the intent of TSTF-542.

Current PBAPS TS Table 3.3.6.1-1 contains a NOTE that allows one channel per trip system for either isolation valve when RHR SOC system integrity is maintained for Modes 4 and 5. TSTF-542 excludes RHR SOC penetration flow paths from the DRAIN TIME calculation if either the flow path can be isolated by the automatic SOC isolation or by maintaining the system in an intact closed loop configuration (i.e., when system integrity is maintained). The new TSTF-542 requirements for use of the isolation function to exclude RHR SOC penetration flow paths from the DRAIN TIME calculation conflict with the previous Table 3.3.6.1-1, Page 3 of 3, note.

Therefore, the note is proposed for deletion.

Response to RAI Application to Revise TS to Adopt TSTF-542 Docket Nos. 50-277 and 50-278 Page 7 of 7 PBAPS-STSB-RAI 8 The required channels per function of proposed function 4.a of proposed Table 3.3.5.4-1 appears to be missing the text "In one trip system" after the numeral 2" in the 'Required Channels per Function' column when compared to the corresponding function of Table 3.3.5.2-1 of TSTF-542. The column header of PBAPS current TS Table 3.3.6.1-1 is entitled "REQUIRED CHANNELS PER TRIP SYSTEM" as described in the approved TSTF traveler model safety evaluation. Please provide justification for the existing markup or provide a new markup for that function for each unit.

Response

Consistent with TSTF-542, the PBAPS design consists of two trip systems with two channels per trip system. The isolation function requires one channel from each trip system to initiate the isolation. The isolation function must be maintained operable to exclude RWCU penetration flow paths from the DRAIN TIME calculation. The isolation FUNCTION is operable when one channel from each trip system is operable or tripped.

The RWCU penetration flow path has two series isolation valves (i.e., M0-015 and M0-018) .

Either isolation valve will isolate the penetration. Operability of the isolation function requires either of these valves to be operable to isolate the penetration.

Current PBAPS TS Instrumentation Section 3.3 tables do not utilize the verbiage "in one trip system," in the "required channels" column. When the Table 3.3.5.4 Function 4.a was added, the existing convention was maintained. This deviation is administrative in nature and does not conflict with the intent of TSTF-542.

References

1) Letter from James Barstow (Exelon Generation Company, LLC) to U.S. Nuclear Regulatory Commission - Application to Revise Technical Specifications to Adopt TSTF-542, "Reactor Pressure Vessel Water Inventory Control," Revision 2, dated January 30, 2017 (ML17030A302)
2) U.S. Nuclear Regulatory Commission Electronic Mail Message from R. B. Ennis to Richard Gropp (Exelon Generation Company, LLC) - Peach Bottom Units 2 and 3 -

Request for Additional Information - TSTF-542 Amendment Request (CACs MF9138 and MF9139), dated August 2, 2017(ML17214A616)

ATTACHMENT 2 PEACH BOTIOM ATOMIC POWER STATION UNITS2 AND 3 NRC Docket Nos. 50-277 and 50-278 Renewed Facility Operating License Nos.

DPR-44 and DPR-56 Application to Revise Technical Specifications to Adopt TSTF-542, "Reactor Pressure Vessel Water Inventory Control," Revision 2 Updated Technical Specifications Mark-up Pages Unit 2 Unit 3 3.3-47a 3.3-47a 3.3-47b 3.3-47b 3.3-47c 3.3-47c 3.3-47d 3.3-47d 3.3-54 3.5-15 3.3-15 3.5-16 3.3-16 3.5-17 3.5-17 3.5-18 3.5-18

PBAPS TSTF-542, Rev 2 New PBAPS TS Section 3.3.5.3 Not Used 3.3.5.3 3.3 INSTRUMENTATION 3.3.5.3 Not Used PBAPS UNIT 2 3.3-47a Amendment No . XXX

PBAPS TSTF-542, Rev 2 RPV Water Inventory Control Instrumentation 3.3.5.4 3.3 INSTRUMENTATION 3.3.5.4 Reactor Pressure Vessel (RPV) Water Inventory Control Instrumentation LCO 3 . 3.5 . 4 The RPV Water Inventory Control instrumentation for each Function in Table 3 . 3 . 5.4-1 shall be OPERABLE .

APPLICABILITY: According to Table 3 . 3 . 5.4-1 .

ACTIONS

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

Separate Condition entry is allowed for each channel .

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more channels A. l Enter the Condition Immediately inoperable . referenced in Table 3 . 3 . 5 . 4- 1 for the channel .

B. As required by B. l Declare associated Immediately Required Action A. l penetration flow and referenced in path(s) incapable of Table 3 . 3 . 5 . 4-1. automatic isolation .

AND B. 2 Calculate DRAIN TIME . Immediately C. As required by C. l Place channel in 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> Required Action A.l trip .

and referenced in Table 3 . 3 . 5 . 4- 1.

D. As required by D. 1 Restore channel to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Required Action A . l OPERABLE status and referenced in Table 3 . 3 . 5 . 4-1.

(continued)

PBAPS UNIT 2 3.3-47b Amendment No . XXX

PBAPS TSTF-542, Rev 2 RPV Water Inventory Control Instrumentation 3.3.5.4 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME E. Required Action and E. l Declare associated Immediately associated Completion low pressure ECCS Time of Condition C or in j ection/spray D not met . subsystem inoperable .

SURVEILLANCE REQUIREMENTS

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

1. Refer to Table 3.3.5.4-1 to determine which SRs apply for each ECCS Function.

SURVEILLANCE FREQUENCY SR 3.3.5.4.1 Perform CHANNEL CHECK . In accordance with the Surveillance Frequency Control Program .

SR 3.3.5.4.2 Perform CHANNEL FUNCTIONAL TEST . In accordance with the Surveillance Frequency Control Program .

SR 3.3.5.4.3 Perform LOGIC SYSTEM FUNCTIONAL TEST . In accordance with the Surveillance Frequency Control Program .

(continued)

PBAPS UNIT 2 3 . 3 - 47c Amendment No . XXX

PBAPS TSTF-542, Rev 2 RPV Water Inventory Control Instrumentation 3.3.5.4 Table 3.3.5.4- 1 (page 1 of 1)

RPV Water Inventory Control Instrumentation APPLICABLE CONDITIONS MODES REQUIRED REFERENCED OR OTHER CHANNELS FROM SPECIFIED PER REQUIRED SURVEILLANCE ALLOWABLE FUNCTION CONDITIONS FUNCTION ACTION A.l REQUIREMENTS VALUE

1. Core Spray System
a. Reactor Pressure~Low 4,5 4 c SR 3 . 3.5 . 4.1 <: 425 . 0 psig (Injection Permissive) SR 3.3.5.4.2 and s 475 . 0 psig
b. Core Spray Pump 4,5 1 per pump D SR 3. 3.5.4 . 1 <: 319.0 psid Discharge Flow--Low (a) SR 3.3.5.4 . 2 and s 351.0 (Bypass) psid
c. Manual Initiation 4,5 1 per D SR 3 . 3 . 5.4 . 3 A subsystem (a)
2. Low Pressure Coolant Injection (LPCI) System
a. Reactor Pressure-Low 4, 5 4 c SR 3. 3. 5.4.1 <: 425.0 psig (Injection Permissive) SR 3. 3. 5.4.2 and s 475.0 psig
b. Low Pressure Coolant 4,5 1 per pump D SR 3. 3. 5.4.1 <: 299.0 psid Injection Pump (a), (c) SR 3.3.5 . 4.2 and s. 331.0 Discharge Flow - Low psid (Bypass)
c. Manual Initiation 4,5 1 per 0 SR 3.3 . 5.4.3 NA subsystem (a)
3. RHR System Isolation
a. Reactor Vessel (b) 2 B SR 3. 3. 5. 4.1 ~ 1.0 inches Water Level - Low, SR 3.3.5.4.2 Level 3
4. Reactor Water Cleanup (RWCU) System Isolation
a. Reactor Vessel (b) 2 B SR 3.3.5.4.1 ~ 1.0 inches Water Level - Low, SR 3. 3.5.4.2 Level 3 (a) Associated with an ECCS subsystem required to be OPERABLE by LCO 3.5.4, "Reactor Pressure Vessel Water Inventory Control."

(b) When automatic isolation of the associated penetration flow path(s) is credited in calculating DRAIN TIME.

(c) Function not required to be OPERABLE while associated pump i s operating in decay heat removal when minimum flow valve is closed and deactivated.

PBAPS UNIT 2 3 . 3 - 47d Amendment No . XXX

Primary Containment Isolation Instrumentation 3.3.6.1 Table 3.3.6.1-1 (page 3 of 3)

Primary Containment Isolation Instrumentation APPLICABLE CONDITIONS MODES OR REQUIRED REFERENCED OTHER CHANNELS FROM SPECIFIED PER TRIP REQUIRED SURVEILLANCE ALLOWABLE FUNCTION CONDITIONS SYSTEM ACTION C.1 REQUIREMENTS VALUE

s. Reactor Water Cleanup (RWCU) System Isolation
a. RWCU Flow-High 1,2 , 3 1 F SR 3. 3.6.1.1 s 125% rated SR 3. 3. 6.1. 3 flow (23.0 SR 3.3 .6.1.7 in-we)
b. SLC System Initiation 1, 2, 3 1 H SR 3.3.6.1. 7 NA
c. Reactor Vessel Water 1,2 , 3 2 F SR 3.3.6.1.1  ;;,, 1.0 inches Level-Low (Level 3) SR 3.3.6.1.2 SR 3. 3.6.1. s SR 3. 3.6.1. 7
6. RHR Shutdown Cooling System Isolation
a. Reactor Pressure-High 1,2,3 1 F SR 3.3.6.1.3 s 70.0 psig SR 3.3.6.1.7
b. Reactor Vessel Water 3,4,S I SR 3.3 . 6.1.1  ;;,, 1.0 inches Level-Low (Level 3) SR 3.3.6.1.2 SR 3. 3.6.1. s SR 3.3.6.1. 7
7. Feedwater Recirculation Isolation
a. Reactor Pressure-High 1,2,3 2 F SR 3. 3.6 .1.1 s 600 psig SR 3.3 .6 .1.2 SR 3. 3.6.1.S SR 3. 3.6.1. 7
8. Traversing Incore Probe Isolation
a. Reactor Vessel Water 1,2,3 2 SR 3. 3.6.1.1  ;;,, 1.0 inches Level-Low (Level 3) SR 3.3 . 6.1.2 SR 3. 3.6.1. s SR 3.3.6.1.7
b. Drywell Pressure-High 1,2,3 2 J SR 3. 3.6.1.1 s 2.0 psig SR 3.3.6.1.2 SR 3. 3. 6.1.5 SR 3. 3.6.1. 7 (a) Deleted PBAPS UNIT 2 3.3-54 Amendment No.

PBAPS TSTF-542, Rev 2 New PBAPS TS Section 3.5.4 RPV Water Inventory Control 3.5.4 3.5 EMERGENCY CORE COOLING SYSTEMS (ECCS) , RPV WATER INVENTORY CONTROL (WIC) , AND REACTOR CORE ISOLATION COOLING (RCIC) SYSTEM 3.5.4 Reactor Pressure Vessel (RPV) Water Inventory Control LCO 3.5.4 DRAIN TIME of RPV water inventory to the top of active fuel (TAF) shall be > 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> .

AND One low pressure ECCS injection/spray subsystem shall be OPERABLE .

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

A Low Pressure Coolant Injection (LPCI) subsystem may be considered OPERABLE during alignment and operation for decay heat removal if capable of being manually realigned and not otherwise inoperable.

APPLICABILITY : MODES 4 and 5 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Required ECCS A.1 Restore required ECCS 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> injection/spray injection/spray subsystem inoperable . subsystem to OPERABLE status.

B. Required Action and B. 1 Initiate action to Immediately associated Completion establish a method of Time of Condition A water injection not met . capable of operating without offsite elect r ical power .

C. DRAIN TIME < 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> C. l Verify secondary 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and > 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> . containment boundary is capable of being established in less than the DRAIN TIME .

AND (continued)

PBAPS UNIT 2 3 . 5 - 15 Amendment No . XXX

PBAPS TSTF-542, Rev 2 RPV Water Inventory Control 3.5.4 ACTIONS (continued)

c. (continued) C. 2 Verify each secondary 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> containment penetration flow path is capable of being isolated in less than the DRAIN TIME .

AND C. 3 Verify one standby 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> gas treatment subsystem is capable of being placed in operation in less than DRAIN TIME .

D. l -- - -- - - -NOTE-- - ------ - -

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

Required ECCS injection/spray subsystem or additional method of water injection shall be capable of operating without offsite electrical power .

Immediately Initiate action to establish an additional method of water injection with water sources capable of maintaining RPV water level > TAF for

> 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> .

AND Immediately D. 2 Initiate action to establish secondary containment boundary .

Immediately AND D. 3 Initiate action to isolate each secondary containment penetration flow path or verify it can be manually isolated from the control room .

AND (continued)

PBAPS UNIT 2 3.5-16 Amendment No . XXX

PBAPS TSTF-542, Rev 2 RPV Water Inventory Control 3.5.4 ACTIONS (continued)

D. (continued) D. 4 Initiate action to verify Immediately one Standby Gas Treatment subsystem is capable of being placed into operation .

E. Required Action and E . 1 Initiate action to Immediately associated Completion restore DRAIN TIME to >

Time of Condition C or 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> .

D not met .

OR DRAIN TIME < 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> .

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.5.4.1 Verify DRAIN TIME > 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> . In accordance with the Surveillance Frequency Control Program .

SR 3.5.4.2 Verify , for a required low pressure coolant In accordance injection (LPCI) subsystem , the suppression with the pool water level is~ 11 . 0 ft . Surveillance Frequency Control Program .

SR 3.5.4.3 Verify , for a required Core Spray (CS) In accordance subsystem , the : with the Surveillance a . Suppression pool water level is > Frequency 11.0 ft . or Control Program .

b . Condensate storage tank water level is >

17 . 3 ft .

(continued)

PBAPS UNIT 2 3 . 5-17 Amendment No . XXX

PBAPS TSTF-542, Rev 2 RPV Water Inventory Control 3.5.4 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.5.4.4 Verify , for the required ECCS In accordance injection/spray subsystem, locations with the susceptible to gas accumulation are Surveillance sufficiently filled with water. Frequency Control Program .

SR 3.5.4.5 ---------------- NOTE ---------- -- ------

Not required to be met fo r s y stem vent flow paths open under administrative control .

Verify for the required ECCS In accordance injection/spray subsystem manual, power with the operated , and automatic valve in the flow Surveillance path , that is not locked , sealed, or Frequency otherwise secured in position , is in the Control correct position . Program .

SR 3 . 5.4 . 6 Operate the required ECCS injection/spray In accordance subsystem through the recirculation line with the for > 10 minutes . Surveillance Frequency Control Program .

SR 3.5.4.7 Verify each valve credited for In accordance automatically isolating a penetration flow with the path actuates to the isolation position on Surveillance an actual or simulated isolation signal. Frequency Control Program .

SR 3.5.4.8 -------- -----------NOTE----- -- ----- ----

Vessel i njection/spray may be excluded .

Verify the required ECCS injection/spray In accordance subsystem can be manually actuated . with the Surveillance Frequency Control Program .

PBAPS UNIT 2 3.5-18 Amendment No . XXX

PBAPS TSTF-542, Rev 2 New PBAPS TS Section 3.3.5.3 Not Used 3.3.5.3 3.3 INSTRUMENTATION 3.3.5.3 Not Used PBAPS UNIT 3 3.3-47a Amendment No . XXX

PBAPS TSTF-542, Rev 2 RPV Water Inventory Control Instrumentation 3.3.5.4 3.3 INSTRUMENTATION 3 . 3 . 5.4 Reactor Pressure Vessel (RPV) Water Inventory Control Instrumentation LCO 3.3 . 5 . 4 The RPV Water Inventory Control instrumentation for each Function in Table 3.3.5.4-1 shall be OPERABLE .

APPLICABILITY : According to Table 3.3.5.4-1 .

ACTIONS

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

Separate Condition entry is allowed fo r each channel.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more channels A.1 Enter the Condition Immediately inoperable . referenced in Tab l e 3 . 3 . 5 . 4- 1 f o r the channel .

B. As required by B. 1 Declare associated Immediately Required Action A . 1 penetrati o n flow and referenced in path (s ) incapable of Table 3 . 3 . 5 . 4- 1. automatic isolation .

AND B. 2 Calculate DRAIN TIME . Immediately C. As required by C. l Place channel in 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> Required Action A . 1 trip .

and referenced in Table 3 . 3 . 5 . 4-1.

D. As required by D. l Restore channel to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Required Action A.1 OPERABLE status and referenced in Table 3 . 3 . 5 . 4- 1.

(continued)

PBAPS UNIT 3 3.3-47b Amendment No . XXX

PBAPS TSTF-542, Rev 2 RPV Water Inventory Control Instrumentation 3.3. 5.4 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME E. Required Action and E. l Declare associated Immediately associated Completion low pressure ECCS Time of Condition C or injection/spray D not met . subsystem inoperable .

SURVEILLANCE REQUIREMENTS

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

1. Refer to Table 3 . 3 . 5.4-1 to determine which SRs apply for each ECCS Function .

SURVEILLANCE FREQUENCY SR 3.3.5.4.1 Perform CHANNEL CHECK . In accordance with the Surveillance Frequency Control Program .

SR 3 .3 .5.4.2 Perform CHANNEL FUNCTIONAL TEST . In accordance with the Surveillance Frequency Control Program .

SR 3.3.5.4.3 Perform LOGIC SYSTEM FUNCTIONAL TEST . In accordance with the Surveillance Frequency Control Program .

(continued)

PBAPS UNIT 3 3 . 3-4 7c Amendment No . XXX

PBAPS TSTF-542, Rev 2 RPV Water Inventory Control Instrumentation 3.3.5.4 Table 3.3.5.4-1 (page 1 of 1)

RPV Water Inventory Control Instrumentation APPLICABLE CONDITIONS MODES REQUIRED REFERENCED OR OTHER CHANNELS FROM SPECIFIED PER REQUIRED SURVEILLANCE ALLOWABLE FUNCTION CONDITIONS FUNCTION ACTION A.1 REQUIREMENTS VALUE

1. Core Spray System
a. Reactor Pressure~Low 4, 5 4 c SR 3.3.5.4.1  ?. 425.0 psig (Injection Permissive) SR 3.3.5.4.2 ands_ 475 . 0 psig
b. Core Spray Pump 4,5 1 per pump D SR 3.3.5 . 4.1  ?. 319 .0 psid Discharge Flow--Low (a) SR 3. 3. 5. 4.2 and s_ 351.0 (Bypass) psid
c. Manual Initiation 4,5 1 per D SR 3.3.5.4 . 3 NA subsystem (a)
2. Low Pressure Coolant Injection (LPCI) System
a. Reactor Pressure- Low 4,5 4 c SR 3.3.5.4.1  ?. 425.0 psig (Injection Permissive) SR 3.3.5.4.2 and s_ 475.0 psig
b. Low Pressure Coolant 4,5 1 per pump D SR 3.3.5.4 . 1  ?. 299.0 psid Injection Pump (a), (c) SR 3.3.5 .4. 2 and s_ 331. 0 Discharge Flow - Low psid (Bypass)
c. Manual Initiation 4, 5 1 per D SR 3. 3.5.4.3 NA subsystem (a)
3. RHR System Isolation
a. Reactor Vessel (b) 2 B SR 3.3.5 . 4.1 2:. 1. 0 inches Water Level - Low, SR 3.3.5.4 . 2 Level 3
4. Reactor Water Cleanup (RWCU) System Isolation
a. Reactor Vessel (b) 2 B SR 3. 3.5 . 4.1 2:. 1.0 inches Water Level - Low, SR 3. 3. 5.4. 2 Level 3 (a) Associated with an ECCS subsystem required to be OPERABLE by LCO 3.5.4, "Reactor Pressure Vessel Water Inventory Control. "

(b) When automatic isolation of the associated penetration flow path(s) is credited in calculating DRAIN TIME.

(c) Function not required to be OPERABLE while associated pump is operating in decay heat removal when minimum flow valve is closed and deactivated.

PBAPS UNIT 3 3 . 3-47d Amendment No. XXX

PBAPS TSTF-542, Rev 2 New PBAPS TS Section 3.5.4 RPV Water Inventory Control 3.5.4 3.5 EMERGENCY CORE COOLING SYSTEMS (ECCS) , RPV WATER INVENTORY CONTROL (WIC) , AND REACTOR CORE ISOLATION COOLING (RCIC) SYSTEM 3.5.4 Reactor Pressure Vessel (RPV) Water Inventory Control LCO 3.5.4 DRAIN TIME of RPV water inventory to the top of active fuel (TAF) shall be > 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> .

AND One low pressure ECCS injection/spray subsystem shall be OPERABLE .

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

A Low Pressure Coolant Injection (LPCI) subsystem may be considered OPERABLE during alignment and operation for decay heat removal if capable of being manually realigned and not otherwise inoperable.

APPLICABILITY : MODES 4 and 5 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Required ECCS A. l Restore required ECCS 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> injection/spray injection/spray subsystem inoperable . subsystem to OPERABLE status .

8. Required Action and B.l Initiate action to Immediately associated Completion establish a method of Time of Condition A water injection not met . capable of operating without offsite electrical power .

C. DRAIN TIME < 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> C.l Verify secondary 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> and > 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> . containment boundary is capable of being established in less than the DRAIN TIME .

AND (continued)

PBAPS UNIT 3 3 . 5-15 Amendment No . XXX

PBAPS TSTF-542, Rev 2 RPV Water Inventory Control 3.5.4 ACTIONS (continued)

C. (continued) C.2 Verify each secondary 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> containment penetration flow path is capable of being isolated in less than the DRAIN TIME .

AND C.3 Verify one standby 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> gas treatment subsystem is capable of being placed in operation in less than DRAIN TIME .

D. l -------- NOTE------- ----

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

Required ECCS injection/spray subsystem or additional method of water injection shall be capable of operating without offsite electrical power .

Immediately Initiate action to establish an additional method of water injection with water sources capable of maintaining RPV water level > TAF for

> 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> .

AND Immediately D.2 Initiate action to establish secondary containment boundary .

Immediately AND D.3 Initiate action to isolate each secondary containment penetration flow path or verify it can be manually isolated from the control room .

AND (continued)

PBAPS UNIT 3 3.5-16 Amendment No . XXX

PBAPS TSTF-542, Rev 2 RPV Water Inventory Control 3.5.4 ACTIONS (continued)

D. (continued) D. 4 Initiate action to verify Immediately one Standby Gas Treatment subsystem is capable of being placed into operation .

E. Required Action and E . 1 Initiate action to Immediately associated Completion restore DRAIN TIME to >

Time of Condition C or 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> .

D not met .

OR DRAIN TIME < 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> .

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.5.4.1 Verify DRAIN TIME > 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> . In accordance with the Surveillance Frequency Control Program .

SR 3.5.4.2 Verify , for a required low pressure coolant In accordance injection (LPCI) subsystem , the suppression with the pool water level is ~ 11.0 ft. Surveillance Frequency Control Program .

SR 3.5. 4.3 Verify , for a required Core Spray (CS) In accordance subsystem, the : with the Surveillance a . Suppression pool water level is > Frequency 11 . 0 ft . or Control Program .

b . Condensate storage tank water level is >

17 . 3 ft .

(continued)

PBAPS UNIT 3 3 . 5-17 Amendment No . XXX

PBAPS TSTF-542, Rev 2 RPV Water Inventory Control 3.5.4 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.5.4.4 Verify, for the required ECCS In accordance injection/spray subsystem, locations with the susceptible to gas accumulation are Surveillance sufficiently filled with water . Frequency Control Program .

SR 3.5. 4.5 -------- -- ------ NOTE------------------

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

Verify for the required ECCS In accordance injection/spray subsystem manual, power with the operated, and automatic valve in the flow Surveillance path, that is not locked, sealed, or Frequency otherwise secured in position , is in the Control correct position. Program .

SR 3.5. 4.6 Operate the required ECCS injection/spray In accordance subsystem through the recirculation line with the for > 10 minutes . Surveillance Frequency Control Program .

SR 3.5.4.7 Verify each valve credited for In accordance automatically isolating a penetration flow with the path actuates to the isolation position on Surveillance an actual or simulated isolation signal . Frequency Control Program .

SR 3.5.4.8 -------- --- -- ------NOTE----------- - ----

Vessel injection/spray may be e x cluded .

Verify the required ECCS injection/spray In accordance subsystem can be manually actuated . with the Surveillance Frequency Control Program .

PBAPS UNIT 3 3.5-18 Amendment No . XXX

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