Text

Change Limitations (LCO 3.0.4 & SR 3.0.4) Using the Consolidated Line Item Improvement Process (Cliip), and Application for Technical Specification Change to Correct Example 1.4-1
	ML062830057
Person / Time
Site:	Palo Verde
Issue date:	09/28/2006
From:	Mauldin D; Arizona Public Service Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	102-05578-CDM/SAB/RJR
	Download: ML062830057 (93)
	v • d • e

10 CFR 50.90 1L**A subsidiaryof Pinnacle West CapitalCorporation David Mauldin Mail Station 7605 Palo Verde Nuclear Vice President Tel (623) 393-5553 PO Box 52034 Generating Station Nuclear Engineering Fax (623) 393-6077 Phoenix, Arizona 85072-2034 102-05578-CDM/SAB/RJR September 28, 2006 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Dear Sirs:

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Units 1, 2 and 3 Docket Nos. STN 50-528, 50-529, and 50-530 Application for Technical Specification Change Regarding Mode Change Limitations (LCO 3.0.4 and SR 3.0.4) Using the Consolidated Line Item Improvement Process (CLIIP), and Application Ifor Technical Specification Change to Correct Example 1.4-1 Pursuant to 10 CFR 50.90, Arizona Public Service Company (APS) hereby requests to amend Operating Licenses NPF-41, NPF-51, and NPF-74 for Palo Verde Nuclear Generating Station (PVNGS) Units 1, 2, and 3, respectively.

The first proposed amendment would modify technical specification (TS) requirements for mode change limitations in Limiting Condition for Operation 3.0.4 and Surveillance Requirement 3.0.4. The proposed amendment request is consistent with NRC-approved Industry/Technical Specification Task Force (TSTF) Traveler number TSTF-359, Revision 9, "Increase Flexibility in Mode Restraints." The availability of thiss TS improvement was announced in the Federal Register on April 4, 2003 (68 FR 16579), as part of the Consolidated Line Item Improvement Process (CLIIP).

The second proposed amendment would correct TS Example 1.4-1, "Surveillance Requirements," to accurately reflect the changes made by TSTF-359 above. The proposed amendment is consistent with TSTF-485, Revision 0 approved by the NRC on December 6, 2005 (Accession no. ML053460302).

Enclosure I is the notarized affidavit for both proposed amendments. Enclosures 2 and 3 provide descriptions and assessments of the proposed changes. Enclosure 2 also provides the requested confirmation of applicability, and plant-specific verifications required by the CLIIP. Attachment 1 to the Enclosures provides TS pages marked up to A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway 0 Comanche Peak 0 Diablo Canyon

Palo Verde 0 South Texas Project 0 Wolf Creek

ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Application for Technical Specification Change Regarding Mode Change Limitations (LCO 3.0.4 and SR 3.0.4) Using the Consolidated Line Item Improvement Process (CLIIP)

Page 2 show the proposed changes. Attachment 2 provides retyped TS pages. Attachment 3 provides a summary of the regulatory commitments made in this submittal. Attachment 4 provides the TS Bases pages marked up to show the proposed changes.

In accordance with the PVNGS Quality Assurance Program, the Plant Review Board and Offsite Safety Review Committee have reviewed and concurred with this proposed amendment. By copy of this letter, this submittal is being forwarded to the Arizona Radiation Regulatory Agency (ARRA) pursuant to 10 CFR 50.91 (b)(1).

APS requests approval of the proposed amendment by July 30, 2007, with an implementation period of 120 days after approval. This requested approval date has been administratively selected to accommodate a normal NRC review time, and is not needed for continued plant operation. Associated TS Bases changes are provided in .

Should you have any questions, please contact Thomas N. Weber at (623) 393-5764.

Sincerely, CDM/SAB/RJRPgt

Enclosures:

1. Notarized Affidavit

2. APS' Evaluation of Proposed Changes Regarding MODE Change Limitations - LCO 3.0.4 and SR 3.0.4 (TSTF-359, Revision 9)

3. APS' Evaluation of the Proposed Changes to Correct Example 1.4-1 (TSTF-485, Revision 0)

Attachments: 1. Proposed Technical Specification Changes (mark-up)

2. Proposed Technical Specification Pages (retyped)

3. Regulatory Commitments

4. Changes to TS Bases Pages cc: B. S. Mallett NRC Region IV Regional Administrator M. B. Fields NRC NRR Project Manager G. G. Warnick NRC Senior Resident Inspector for PVNGS A. V. Godwin Arizona Radiation Regulatory Agency (ARRA)

T. Morales Arizona Radiation Regulatory Agency (ARRA)

ENCLOSURE I NOTARIZED AFFIDAVIT STATE OF ARIZONA )) SS.

COUNTY OF MARICOPA )

I, David Mauldin, represent that I am Vice President - Nuclear Enginearing, Arizona Public Service Company (APS), that the foregoing document has been signed by me on behalf of APS with full authority to do so, and that to the best of my knowledge and belief, the statements made therein are true and correct.

David Mauldin Swom To Before Me This , Day Of 4 ,2006.

OFICIIAL SEAL Christy L. Arter Noth10ta ublic CoffiSSon#166400 NOTARY PIJI.IC -STATE of ARIZONA MARICOPA COUNTY MY COMaM. EXPIRES PAuO 20,2010 Notary Commission Stamp

ENCLOSURE 2 Arizona Public Service Company's Evaluation

Subject:

Proposed Changes Regarding MODE Change Limitations LCO 3.0.4 and SR 3.0.4 (TSTF-359, Revision 9)

1.0 DESCRIPTION

2.0 ASSESSMENT 2.1 Applicability of Published Safety Evaluation 2.2 Optional Changes and Variations

3.0 REGULATORY ANALYSIS

3.1 No Significant Hazards Consideration Determination 3.2 Verification and Commitments 4.0 ENVIRONMENTAL EVALUATION

Enclosure 2: APS' Evaluation of Proposed Changes Regarding MODE Change Limitations - LCO 3.0.4 and SR 3.0.4 (TSTF-359, Rev. 9)

1.0 DESCRIPTION

The proposed amendment would modify technical specification (TS) requirements for mode change limitations in Limiting Conditions for Operation (LCO) 3.0.4 and Surveillance Requirement (SR) 3.0.4.

The changes are consistent with Nuclear Regulatory Commission (NRC) approved Industry/Technical Specification Task Force (TSTF) STS change TSTF-359, Revision 9, "Increase Flexibility in MODE Restraints." Revision 9 of TSTF-359 reflects Revision 8 of TSTF-359, as modified by the notice in the Federal Register published on April 4, 2003 (68 FR 16579). The Federal Register notice announced the availability of this TS improvement through the Consolidated Line Item Improvement Process (CLIIP). The changes being proposed are listed in Table 1. Deviations from TSTF-359, Revision 9 are listed in Table 2. Attachment 3 provides a summary of the regulatory commitments made in this submittal.

2.0 ASSESSMENT 2.1 Applicability of Published Safety Evaluation Arizona Pubic Service Company (APS) has reviewed the safety evaluation clated April 4, 2003, as part of the CLIIP. This review included a review of the NRC staff's evaluation, as well as the supporting information provided in support of TSTF-359, Revision 9. APS has concluded that the justifications presented in the TSTF" proposal and the safety evaluation prepared by the NRC staff are applicable to Palo Verde Nuclear Generating Station (PVNGS) Units 1, 2, and 3, and justify this amendment for the incorporation of the changes to the PVNGS TS.

2.2 Optional Changes and Variation Except for two changes that are not applicable to the PVNGS plant design, as listed in Table 2, APS is not proposing any variations or deviations from the TS changes described in TSTF-359, Revision 9, or the NRC staff's model safety evaluation dated April 4, 2003.

3.0 REGULATORY ANALYSIS

3.1 No Significant Hazards Consideration Analysis APS has reviewed the proposed no significant hazards consideration determination (NSHCD) published in the Federal Register as part of the CLIIP. APS has concluded that the proposed NSHCD presented in the Federal Register notice is applicable to PVNGS Units 1, 2, and 3 and is hereby incorporated by reference to satisfy the requirements of 10 CFR 50.91 (a).

E.2-1

Enclosure 2: APS' Evaluation of Proposed Changes Regarding MODE Change Limitations - LCO 3.0.4 and SR 3.0.4 (TSTF-359, Rev. 9) 3.2 Verification and Commitments As discussed in the notice of availability published in the Federal Register on April 4, 2003, for this TS improvement, plant-specific verifications were performed as follows:

APS has established TS Bases for LCO 3.0.4 and SR 3.0.4 which state that use of the TS mode change limitation flexibility established by LCO 3.0.4 and SR 3.0.4 is not to be interpreted as endorsing the failure to exercise the good practice of restoring systems or components to operable status before entering an associated mode or other specified condition in the TS Applicability.

The modification also includes changes to the bases for LCO 3.0.4 and SR 3.0.4 that provide details on how to implement the new requirements. The bases changes provide guidance for changing Modes or other specified conditions in the Applicability when an LCO is not met. The bases changes describe in detail how:

LCO 3.0.4.a allows entry into a MODE or other specified condition in the Applicability with the LCO not met when the associated ACTIONS to be entered permit continued operation in the MODE or other specified condition in the Applicability for an unlimited period of time,

" LCO 3.0.4.b allows entry into a MODE or other specified condition in the Applicability with the LCO not met after performance of a risk assessment addressing inoperable systems and components, consideration of the results, determination of the acceptability of entering the MODE or other specified condition in the Applicability, and establishment of risk management actions, if appropriate, and

" LCO 3.0.4.c allows entry into a MODE or other specified condition in the Applicability with the LCO not met based on a Note in the Specification, which is typically applied to Specifications which describe values and parameters (e.g., Reactor Coolant System Specific Activity), though it may be applied to other Specifications based on NRC plant-specific approval.

The bases also state that any risk impact should be managed through the program in place to implement 10 CFR 50.65(a)(4) and its implementation guidance, NRC Regulatory Guide 1.182. "Assessing and Managing Risks Before Maintenance Activities at Nuclear Power Plants," and that the results of the risk assessment shall be considered in determining the acceptability of entering the MODE or other specified condition in the Applicability, and any corresponding risk management actions. In addition, the bases state that upon entry into a Mode or other specified condition in the Applicability with the LCO not met, LCO 3.0.1 and LCO 3.0.2 require entry into the applicable Conditions and Required Actions for no more than the duration of the applicable Completion Time or until the LCO is met or the unit is not within the Applicability of the TS. The bases also state that SR 3.0.4 does not restrict changing MODES or other specified conditions of the Applicability when a SR has not been E.2-2

Enclosure 2: APS' Evaluation of Proposed Changes Regarding MODE Change Limitations - LCO 3.0.4 and SR 3.0.4 (TSTF-359, Rev. 9) performed within the specified Frequency, provided the requirement to declare the LCO not met has been delayed in accordance with SR 3.0.3.

The PVNGS TS Bases Control Program, TS 5.5.14, is consistent with Section 5.5 of the Standard Technical Specifications (STS). In addition, PVNGS Surveillance Requirement 3.0.1 is the equivalent of STS SR 3.0.1 and associated bases.

4.0 ENVIRONMENTAL CONSIDERATION

APS has reviewed the environmental evaluation included in the model safely evaluation dated April 4, 2003, as part of the CLIIP. APS has concluded that the staff's findings presented in that evaluation are applicable to PVNGS Units 1, 2, and 3, and the evaluation is hereby incorporated by reference for this application.

Table I - Summary of Changes Being Made Affected Technical Description of Changes Specifications (All changes reflect TSTF-389 unless noted)

Revised Example 1.4-1 to be consistent with the 1.0 Use and Application requirements of SR 3.0.4 as described in TSTF-485, Revision 0.

3.0 Limiting Condition for Revised LCO 3.0.4 to a Risk Informed evaluation of Operation (LCO) Mode changes.

Applicability 3.0 Surveillance Requirement Revised SR 3.0.4 to clarify relationship to LCO 3.0.4 (SR) Applicability Removed Note "LCO 3.0.4 is not applicable" from LCO 3.3.1, "RPS Instrumentation - Operating (Before CPC Upgrade)," Required Action B.1 and Required Action D.

Removed Note "LCO 3.0.4 is not applicable" from LCO 3.3.1, "RPS Instrumentation - Operating (After CPC Upgrade)," Required Action B.1 and Required 3.3 Instrumentation Action D.

Removed Note "LCO 3.0.4 is not applicable" from LCO 3.3.2, "RPS Instrumentation - Shutdown,"

Required Action B.1 and Required Action D.

Removed Note "LCO 3.0.4 is not applicable" from LCO 3.3.5, "ESFAS Instrumentation," Required Action B.1 and Required Action D.

E.2-3

Enclosure 2: APS' Evaluation of Proposed Changes Regarding MODE Change Limitations - LCO 3.0.4 and SR 3.0.4 (TSTF-359, Rev. 9)

Table I - Summary of Changes Being Made Affected Technical Description of Changes Specifications (All changes reflect TSTF-389 unless noted) 3.3 Instrumentation Removed Note "LCO 3.0.4 is not applicable" from LCO 3.3.7, "DG - LOVS," Required Action B.2.

Removed Note "LCO 3.0.4 is not applicable" from LCO 3.3.10 (STS 3.3.11), "PAM Instrumentation,"

Actions.

Removed Note "LCO 3.0.4 is not applicable" from LCO 3.3.11 (STS 3.3.12), "Remote Shutdown System," Actions.

Added Note: "LOC 3.0.4.b is not applicable when entering Mode 4" to LCO 3.4.13 (STS 3.4.12), "LTOP System," Actions and removed Note "LCO 3.0.4 is note applicable" from LCO 3.4.13, Required Action A.

3.4 Reactor Coolant System Removed Note "LCO 3.0.4 is not applicable" from (RCS) LCO 3.4.16 (STS 3.4.15), "RCS Leakage Detection System," Required Action A and Required Action B.

Revised Note for LCO 3.4.17 (STS 3.4.16), "RCS Specific Activity," Required Action A to read "LCO 3.0.4.c is not applicable."

Added Note "LCO 3.0.4.b is not applicable to ECCS 3.5 Emergency Core Cooling High Pressure Safety Injection Subsystem when Systems (ECCS) entering Mode 4," to LCO 3.5.4 (STS 3.5.3), "ECCS

- Shutdown," Actions.

Remove Note "LCO 3.0.4 is not applicable," from 3.6 Containment Systems LCO 3.6.7 (STS 3.6.8), "Hydrogen Recombiners,"

Required Action A.

Remove Note "LCO 3.0.4 is not applicable," from LCO 3.7.4, "ADVs," Required Action A.1.

3.7 Plant Systems Added Note "LCO 3.0.4.b is not applicable," to LCO 3.7.5, "AFW System," Actions.

3.8 Electrical Systems Added Note "LCO 3.0.4.b is not applicable," to LCO 3.8.1, "AC Sources - Operating," Actions.

E.2-4

Enclosure 2: APS' Evaluation of Proposed Changes Regarding MODE Change Limitations - LCO 3.0.4 and SR 3.0.4 (TSTF-359, Rev. 9)

Table 2 - Summary of Changes not Being Made Required for Consistency with TSTF-359 TSTF Mark-up Resolution STS 3.4.11, "Pressurizer Power Operated Relief The Palo Verde units do not have PORVs Valves (PORVs)," Action A.1 STS 3.6.9, "Hydrogen Mixing System (HMS)," The Palo Verde units do not have a HMS Action 3.6.9.A and Bases E.2-5

ENCLOSURE 3 Arizona Public Service Company's Evaluation

Subject:

Evaluation of the Proposed Changes to Correct Example 1.4-1 (TSTF-485, Revision 0)

1.0 DESCRIPTION

2.0 PROPOSED CHANGE

3.0 TECHNICAL ANALYSIS

4.0 REGULATORY ANALYSIS

4.1 No Significant Hazards Consideration Determination 4.2 Applicable Regulatory Requirements/Criteria 5.0 ENVIRONMENTAL EVALUATION

Enclosure 3: APS' Evaluation of the Proposed Changes to Correct Example 1.4-1 (TSTF-485, Revision 0)

BACKGROUND In Enclosure 2 of this submittal, Arizona Public Service Company (APS) is proposing to adopt NRC approved Industry/Technical Specification Task Force (TSTF) change TSTF-359, Revision 9, "Increase Flexibility in MODE Restraints." The proposed TSTF-359 changes to SR 3.0.4 would make certain statements in Example 1.4-1 incorrect. The changes proposed in TSTF-485, Revision 0 would revise the example to be consistent with the proposed TSTF-359 changes.

1.0 DESCRIPTION

Section 1.4, Frequency, Example 1.4-1, is revised to be consistent with the requirements of SR 3.0.4. SR 3.0.4 was revised by TSTF-359, Revision 9, and the current example is not consistent with the Technical Specification requirements.

2.0 PROPOSED CHANGE

The second paragraph of Example 1.4-1 is revised. The paragraph states:

If the interval as specifiedby SR 3.0.2 is exceeded while the unit is not in a MODE or other specified condition in the Applicability of the LCO for which performance of the SR is required,the Surveillance must be performed within the Frequency requirementsof SR 3.0.2 priorto entry into the MODE or other specified condition. Failureto do so would result in a violation of SR 3.0.4.

The second paragraph of Example 1.4-1 is being revised to state:

If the intervalas specified by SR 3.0.2 is exceeded while the unit is not in a MODE or other specified condition in the Applicability of the LCO for which performance of the SR is required,then SR 3.0.4 becomes applicable. The Surveillance must be performed within the Frequencyrequirementsof SR 3.0.2, as modified by SR 3.0.3, priorto entry into the MODE or other specified condition or the LCO is considerednot met (in accordancewith SR 3.0.1) and LCO 3.0.4 becomes applicable.

3.0 TECHNICAL ANALYSIS

Example 1.4-1 states that if the interval as specified by SR 3.0.2 is exceeded while the unit is not in a MODE or other specified condition in the Applicability of the L.CO for which performance of the SR is required, the Surveillance must be performed within the Frequency requirements of SR 3.0.2 prior to entry into the MODE or other specified condition. Failure to do so would result in a violation of SR 3.0.4.

SR 3.0.4 states that entry into a MODE or other specified condition in the Applicability of an LCO shall only be made when the LCO's Surveillances have been met within their specified Frequency. TSTF-359 modified SR 3.0.4 to state that when an LCO is not E.3-1

Enclosure 3: APS' Evaluation of the Proposed Changes to Correct Example 1.4-1 (TSTF-485, Revision 0) met due to Surveillances not having been met, entry into a MODE or other specified condition in the Applicability shall only be made in accordance with LCO 3.0.4. TSTF-359 modified LCO 3.0.4 to provide conditions under which it is acceptable to enter the Applicability of the LCO with the LCO not met. Therefore, it is possible to enter the MODE or other specified condition in the Applicability of an LCO with a Surveillance not performed within the Frequency requirements of SR 3.0.2 and this does not result in a violation of SR 3.0.4.

The Example 1.4-1, second paragraph discussion is modified to parallel the discussion in the previous paragraph. The previous paragraph discusses Surveillances that exceed the interval without being performed while in the Applicability. The second paragraph is modified to make a similar statement regarding Surveillances that exceed the interval while not being in the Applicability.

The second sentence of the second paragraph is modified to reference the provisions of SR 3.0.3. This is necessary as TSTF-359 modified SR 3.0.4 to recognize that performance of a missed Surveillance may have been extended and prior to performance of the missed Surveillance, but within the time permitted under SR 3.0.3, a MODE change occurs.

The statement that failure to perform a surveillance prior to entering the Applicability would constitute a violation of SR 3.0.4 is deleted and a statement is inserted to state the LCO would not be met and LCO 3.0.4 becomes applicable. This is consistent with the revised SR 3.0.4.

4.0 REGULATORY ANALYSIS

4.1 No Significant Hazards Consideration Determination The TSTF has evaluated whether or not a significant hazards consideration is involved with the proposed generic change by focusing on the three standards set forth in 10 CFR 50.92, "Issuance of amendment," as discussed below:

1. Does the proposed change involve a significant increase in the probability or consequences of an accident previously evaluated?

Response: No.

The proposed change revises Section 1.4, Frequency, "Example 1.4-1," to be consistent with Surveillance Requirement (SR) 3.0.4 and Limiting Condition for Operation (LCO) 3.0.4. This change is considered administrative in that it modifies the example to demonstrate the proper application of SR 3.0.4 and LCO 3.0.4. The requirements of SR 3.0.4 and LCO 3.0.4 are clear and are clearly explained in the associated Bases. As a result, modifying the example will not result in a change in usage of the Technical Specifications (TS). The proposed change does not adversely affect accident initiators or precursors, E.3-2

Enclosure 3: APS' Evaluation of the Proposed Changes to Correct Example 1.4-1 (TSTF-485, Revision 0) the ability of structures, systems, and components (SSCs) to perform their intended function to mitigate the consequences of an initiating event within the assumed acceptance limits, or radiological release assumptions used in evaluating the radiological consequences of an accident previously evaluated.

Therefore, this change is considered administrative and will have no effect on the probability or consequences of any accident previously evaluated.

Therefore, the proposed change does not involve a significant increase in the probability or consequences of an accident previously evaluated.

2. Does the proposed change create the possibility of a new or different kind of accident from any accident previously evaluated?

Response: No.

No new or different accidents result from utilizing the proposed change. The change does not involve a physical alteration of the plant (i.e., no new or different type of equipment will be installed) or a change in the methods governing normal plant operation. In addition, the change does not impose any new or different requirements or eliminate any existing requirements.

The change does not alter assumptions made in the safety analysis. The proposed change is consistent with the safety analysis assumptions and current plant operating practice.

Therefore, the proposed change does not create the possibility of a new or different kind of accident from any accident previously evaluated.

3. Does the proposed change involve a significant reduction in a margin of safety?

Response: No.

The proposed change is administrative and will have no effect on the application of the Technical Specification requirements. Therefore, the margin of safety provided by the Technical Specification requirements is unchanged.

Therefore, the proposed change does not involve a significant reduction in a margin of safety.

4.2 Applicable Regulatory Requirements/Criteria This change is administrative and will have no effect on any regulatory requirements or criteria.

E.3-3

Enclosure 3: APS' Evaluation of the Proposed Changes to Correct Example 1.4-1 (TSTF-485, Revision 0)

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

5.0 ENVIRONMENTAL EVALUATIOIN A review has determined that the proposed change would change a requirement with respect to installation or use of a facility component located within the restricted area, as defined in 10 CFR 20, or would change an inspection or surveillance requirement.

However, the proposed change does not involve (i) a significant hazards consideration, (ii)a significant change in the types or significant increase in the amounts of any effluents that may be released offsite, or (iii) a significant increase in individual or cumulative occupational radiation exposure. Accordingly, the proposed change meets the eligibility criterion for categorical exclusion set forth in 10 CFR 51.22(c)(9).

Therefore, pursuant to 10 CFR 51.22(b), no environmental impact statemen1: or environmental assessment need be prepared in connection with the proposed change.

E.3-4

Attachment I Proposed Technical Specification Changes (mark-up)

Pages:

1.4-2 3.0-1 (and Insert) 3.0-2 3.0-5 3.3.1-1 3.3.1-2 3.3.1-11 3.3.1-12 3.3.2-1 3.3.2-2 3.3.5-1 3.3.5-2 3.3.7-2 3.3.10-1 3.3.11-1 3.4.13-1 3.4.16-1 3.4.16-2 3.4.17-1 3.5.4-1 3.6.7-1 3.7.4-1 3.7.5-1 3.8.1-1

1/j Frequency 1.4 1.4 Frequency EXAMPLES EXAMPLE 1.4-1 (continued)

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY Perform CHANNEL CHECK. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months Example 1.4-1 contains the type of SR most often encountered in the Technical Specifications (TS). The Frequency specifies an interval (12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months ) during which the associated Surveillance must be performed at least one time.

Performance of the Surveillance initiates the subsequent interval. Although the Frequency is stated as 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months , an extension of the time interval to 1.25 times the stated Frequency is allowed by SR 3.0.2 for operational flexibility. The measurement of this interval continues at all times, even when the SR is not required to bel met per SR 3.0.1 (such as when the equipment is inoperable, a variable is outside specified limits, or the unit. is outside the Applicability of the LCO). If the interval specified by SR 3.0.2 is exceeded while the unit is in a MODE or other specified condition in the Applicability of the [CO, and the performance of the Surveillance is not otherwise modified (refer to Example 1.4-3), then SR 3.0.3 becomes applicable.

If the interval as specified by SR 3.0.2 is exceeded while the unit is not in a MODE or other specified condition in the Applicability of the LCO for which performance of the SR j4-ge4Luitd4 Surveillance must be performed within the Frequency requirements of SR 3.0.2Dnor t MODE or other specified condition* .,0 (continued)

PALO VERDE UNITS 1,2.3 1.4-2 AMEND11ENT NO. 444-0

LCO Applicability 3.0 3.0 LIMITING CONDITION FOR OPERATION (LCO) APPLICABILITY LCO 3.0.1 LCOs shall be met during the MODES or other specified conditions in the Applicability, except as provided in LCO 3.0.2 and LCO 3.0.7.

LCO 3.0.2 Upon discovery of a failure to meet an LCO, the Required Actions of the associated Conditions shall be me-:. except as provided in LCO 3.0.5 and LCO 3.0.6.

If the LCO is met or is no longer applicable prior to expiration of the specified Completion Time(s), completion of the Required Action(s) is not required, unless otherwise stated.

LCO 3.0.3 When an LCO is not met and the associated ACTIONS are not met, an associated ACTION is not provided, or if directed by the associated ACTIONS, the unit shall be placed in a MODE or other specified condition in which the LCO is not applicable. Action shall be initiated within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months to place the unit, as applicable, in:

a. MODE 3 within 7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months ;

b. MODE 5 within 37 hours4.282407e-4 days 0.0103 hours 6.117725e-5 weeks 1.40785e-5 months .

Exceptions to this Specification are stated in the individual Specifications.

Where corrective measures are completed that permit

operation in accordance with the LCO or ACTIONS, completion of the actions required by LCO 3.0.3 is not required.

LCO 3.0.3 is only applicable in MODES 1, 2, 3, and 4.

LCO 3.0.4 hen an LCO is, not mt en.y.nt .aM or oth p ie cnition i , ppl icabi i..y shall not -emade'except when the associated ACTIONS to be entered permit continued' operatic,, in the MnnR or other spejifiPd conditinnn the Aplicability for an unlimited period of time.

4D:ý sný -3 59 -F ý (continued)

PALO VERDE UNITS 1,2.3 3.0-1 AMENDMENT NO. ti-1 Q X. O,, X b +- 1O

TSTF-359 R9 Insert 1 LDCR 04-T004 2/4 When an LCO is not met, entry into a MODE or other specified condition in the Applicability shall only be made:

a. When the associated ACTIONS to be entered permit continued operation in the MODE or other specified condition in the Applicability for an unlimited period of time;

b. After performance of a risk assessment addressing inoperable systems and components, consideration of the results, determination of the acceptability of entering the MODE or other specified condition in the Applicability, and establishment of risk management actions, if appropriate; exceptions to this Specification are stated in the individual Specifications, or

c. When an allowance is stated in the individual value, parameter, or other Specification.

This specification shall not prevent changes in MODES or other specified conditions in the Applicability that are required to comply with ACTIONS or that are part of a shutdown of a unit.

77r LCO Applicability 3.0 3.0 [CO APPLICABILITY LCO 3.0.4 his Specification shall not Kevent changes in NODES or (continued) ot sspecified conditions in t p icability that are require t comply with t ni t. ACTIONS or p rtof aa t r a eatof shutdown of TIO S ly wi h A

r qui ecr Exceptions to this Sp *cation are stated in ,

individual Specifications. S.

LCO 3.0.4 is only applicable for entry nto a MODE or other specified condition in the Applicability in MODES 1. 2. 3.

nd 4.

LCO 3.0.5 Equipment removed from service or declared inoperable to comply with ACTIONS may be returned to service urder administrative control solely to perform testing required to demonstrate its OPERABILITY or the OPERABILITY of other equipment. This is an exception to LCO 3.0.2 for the system returned to service under administrative control to perform the testing required to demonstrate OPERABILITY.

LCO 3.0.6 When a supported system LCO is not met solely due to a support system LCO not being met, the Conditions and Required Actions associated with this supported system are not required to be entered. Only the support system LCO ACTIONS are required to be entered. This is an exception to LCO 3.0.2 for the supported system. In this event, an evaluation shall be performed in accordance with Specification 5.5.15, "Safety Function Determination Program (SFDP)." If a loss of safety function is determined to exist by this program, the appropriate Conditions and Required Actions of the LCO in which the loss of safety function exists are required to be entered.

(continued)

PALO VERDE UNITS 1.2,3 3.0-2 AMENDMENT NO. 7**

C-t,kA o- 7'CW

SR Ap~licability 3.0 3.0 SR APPLICABILITY SR 3.0.3 When the Surveillance is performed within the de-ay period (continued) and the Surveillance is not met, the LCO must imnediately be declared not met, and the applicable Condition(s) must be entered.

SR 3.0.4 Entry into a MODE or other s ified condi lo ri the Applicability of an LCO shal be made o _ "the LCO's Surveillances have been met within their specified Fre uenc This provision shall not prevent entry into ODE or other specified conditions in the Applicability that are required to comply with ACTIONS or that are part of a shutdown of the unit.

SR3..1 i rj tionl apliabernr

,**_]*,, * ,, ,*

into,,il~v MOD, L.* .,

- er(

L e, c~~~y~~c'c U.C E$~

~C-(I 0~t Qc'c OLC ~-oý04, PALO VERDE UNITS 1,2.3 3.0-5 AMENDMENT NO. 71-7-0

(-DCL o(L7 c

RPS Instrumentation - Operating (Before CPC Upgrade) 3.3.1 3.3 INSTRUMENTATION 3.3.1 Reactor Protective System (RPS) Instrumentation - Operating LCO 3.3.1 Four RPS trip and bypass removal channels for each Function in Table 3.3.1-1 sha 1 be OPERABLE.

APPLICABILITY: According to Table 3.3.1-1. (Before CPC Upgrade)

ACTIONS

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

Separate Condition entry is allowed for each RPS Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more Functions A.1 Place channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months , with one automatic RPS bypass or trip.

trip channel inoperable. AND A.2 Restore channel to Prior to OPERABLE status. entering MODE 2 following next MODE 5 entry B. One or more Functions B.1- -------NOT-------

with two automatic RPS trip channels applicable.

inoperable.

Place one channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months bypass and the other in trip.

(continued)

PALO VERDE UNITS 1,2,3 3.3.1-1 AMENDMENT NO. 4-1-7-, iii; LD o tt-T OO %

6 1'

RPS Instrumentation - Operating (Before CPC Upgrade) 3.3.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. One or more Functions C.1 Disable bypass 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with one automatic channel.

bypass removal channel inoperable. OR C.2.1 Place affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months automatic trip channel in bypass or trip.

AND C.2.2 Restore bypass Prior to removal channel and entering MODE 2 associated automatic following next trip channel to MODE 5 entry OPERABLE status.

D. One or more Functions-----------OTE--------

with two automatic LCO 3.0.4 is n licable.

bypass removal channels inoperable.

D.1 Disable bypass 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months channels.

OR D.2 Place one affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months automatic trip channel in bypass and place the other in trip.

E. One or more core E.1 Perform CHANNEL 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months protection calculator FUNCTIONAL TEST on (CPC) channels with a affected CPC.

cabinet high temperature alarm.

(continued)

PALO VERDE UNITS 1,2,3 3.3.1-2 AMENDMENT NO. 4;-, -1 [

RPS Instrumentation - Operating (After CPC Upgrade) 3.3.1 3.3 INSTRUMENTATION 3.3.1 Reactor Protective System (RPS) Instrumentation - Operating LCO 3.3.1 Four RPS trip and bypass removal channels for each Function in Table 3.3.1-1 shall be OPERABLE.

APPLICABILITY: According to Table 3.3.1-1. (After CPC Upgrade)

ACTIONS

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

Separate Condition entry is allowed for each RPS Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more Functions A.1 Place channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ' with one automatic RPS bypass or trip.

trip channel inoperable. AND A.2 Restore channel to Prior to OPERABLE status. entering MODE 2 following next MODE 5)entry B. One or more Functions B.1---------NOTE------

with two automatic RPS trip channels inoperable.

Place one channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months bypass and the other in trip.

(continued)

PALO VERDE UNITS 1,2.3 3.3.1-11 AMENDMENT NO.

Lloc CC(-VY

RPS Instrumentation - Operating (After CPC Upgrade) 3.3.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. One or more Functions C.1 Disable bypass 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with one automatic channel.

bypass removal channel inoperable. OR C.2.1 Place affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months automatic trip channel in bypass or trip.

AND C.2.2 Restore bypass Prior to removal channel and entering MODE 2 associated automatic following next trip channel to MODE 5 entry OPERABLE status.

D. One or more Functions-- ....... TE-------

with two automatic CO3.0.4 is not cable.

bypass removal channels inoperable.

D.1 Disable bypass 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months channels.

OR D.2 Place one affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months automatic trip channel in bypass and place the other in trip.

E. Required Action and E.1 Be in MODE 3 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time not met.

(continued)

PALO VERDE UNITS 1.2,3 3.3.1-12 AMENDMENT NO. ,*g-o tdpuL oel, -V /Dolt

RPS Instrumentation - Shutdown 3.3.2 3.3 INSTRUMENTATION 3.3.2 Reactor Protective System (RPS) Instrumentation - Shutdown LCO 3.3.2 Four RPS trip and bypass removal channels for each Function in Table 3.3.2-1 shall be OPERABLE.

APPLICABILITY: According to Table 3.3.2-1.

ACTIONS

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

Separate condition entry is allowed for each RPS Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more functions A.1 Place channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with one automatic RPS bypass or trip.

trip channel inoperable. AND A.2 Restore channel to Prior to OPERABLE status. entering MODE 2 following next MODE 5 entry B. One or more functions B.1- -------- NOTE------

with two automatic RPS trip channels applicable.

inoperable.

Place one channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ' bypass and place the other in trip.

(continued)

PALO VERDE UNITS 1.2.3 3.3.2-1 AMENDMENT NO.--"'(1 LOK DC& 4 V7

RPS Instrumentation - Shutdown 3.3.2 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. One or more functions C.1 Disable bypass 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with one automatic channel.

bypass removal channel inoperable. OR C.2.1 Place affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months channel in bypass or trip.

AND C.2.2 Restore bypass Prior to removal channel and entering MODE 2 associated automatic following next trip channel to MODE E entry OPERABLE status.

D. One or more functions- --- E--------

with two automatic no licable.

bypass removal channel s i nope rabl e. D.1 Disable bypass 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months channels.

OR D.2 Place one affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ' automatic trip channel bypass and place the other in trip.

E. Requi red Action and E.1 Open all RTCBs. 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ' associated Compl eti on Time not met.

PALO VERDE UNITS 1,2,3 3.3.2-2 AMENDMENT NO.

I A-...

%,VLA', L) ( 11W 16Y

/W

ESFAS Instrumentation 3.3.5 3.3 INSTRUMENTATION 3.3.5 Engineered Safety Features Actuation System (ESFAS) Instrumentation LCO 3.3.5 Four ESFAS trip and bypass removal channels for each Function in Table 3.3.5-1 shall be OPERABLE.

APPLICABILITY: According to Table 3.3.5-1.

ACTIONS

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

Separate Condition entry is allowed for each ESFAS Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more Functions A.1 Place channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with one automatic bypass or trip.

ESFAS trip channel inoperable. AND A.2 Restore channel to Prior to OPERABLE status. entering MODE 2 following next MODE E entry B. One or more Functions B.1 -NOTE-----

with two automatic LEO 0. 's.not ESFAS trip channels applicable.

inoperable.

Place one channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months ' bypass and the other in trip.

(continued)

PALO VERDE UNITS 1,2,3 3.3.5-1 AMENDMENT NO.

tL Cf _ '-t-dxcy 1

ESFAS Instrumentati on 3.3.5 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. One or more Functions C.1 Disable bypass 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with one automatic channel.

bypass removal channel inoperable. OR C.2.1 Place affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months automatic trip channel in bypass or trip.

AND C.2.2 Restore bypass Prior to removal channel and entering MODE 2 associated automatic following next trip channel to MODE E entry OPERABLE status.

D, One or more Functions -----------

OTE ---------

with two automatic LCO 3.0.4 is n- applicable.

channel sremoval--

bypass i noperabl e.--

D.1 Disable bypass 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months channels.

OR D.2 Place one affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months automatic trip channel in bypass and place the other in trip.

E. Required Action and E.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associ ated Completion Time not met. AND E.2 Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months PALO VERDE UNITS 1,2,3 3.3.5-2 AMENDMENT NO.

i

(-ri4L(

DG - LOVS 3.3.7 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B. Two LOVS channels per B.1 Enter applicable 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months DG inoperable. Conditions and Requi red Actions for the associated DG made inoperable by DG - LOVS instrumentation.

OR B.2 --

c --ýNOE-Place one channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months bypass and the other channel in trip.

C. More than two LOVS C.1 Restore all but two 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months channels per DG channels to OPERABLE inoperable. status.

D. Required Action and D.1 Enter applicable Immediately associated Completion Conditions and Time not met. Required Actions for the associated DG made inoperable by DG - LOVS instrumentation.

PALO VERDE UNITS 1,2,3 3.3.7-2 AMENDMENT NO.

L,,QcJL OqC,(-OO$

PAM Instrumentation 3.3.10 3.3 INSTRUMENTATION 3.3.10 Post Accident Monitoring (PAM) Instrumentation LCO 3.3.10 The PAM instrumentation for each Function in Table 3.3.10-1 shall be OPERABLE.

APPLICABILITY: MODES 1, 2, and 3.

ACTIONS

'I------- ------- NOTkQ)- ----------------

1. LCO 3. . applicable.

a C n etry is allowed for each Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more Functions A.1 Restore required 30 days with one required channel to OPERABLE channel inoperable, status.

B. Required Action and B.1 Initiate action in Immediately associated Completion accordance with Time of Condition A Specification 5.6.6.

not met.

C. -------- NOTE-------- C.1 Restore one channel 7 days Not applicable to to OPERABLE status.

hydrogen monitor channels.

One or more Functions with two required channels inoperable.

(continued)

PALO VERDE UNITS 1,2,3 3.3.10-1 AMENDMENT NO.

~,V7O yt

Remote Shutdown System 3.3.11 3.3 INSTRUMENTATION 3.3.11 Remote Shutdown System LCO 3.3.11 The Remote Shutdown System Instrumentation Functions in Table 3.3.11-1 and each Remote Shutdown System disconnect switch and control circuit shall be OPERABLE.

APPLICABILITY: MODES 1, 2, and 3.

ACTIONS

-ý - - - - - - - ------------ ----- NOTEQL-- - - - -- - - - - - ---- - - -

1. [CO 3. . ot applicable.

"C7.SeparateCondition entry is allowed for each Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more required A.1 Restore required 30 days Functions in Table Functions to OPERABLE 3.3.11.1 inoperable, status.

B. One or more remote B.1 Restore required 30 days shutdown system switch(s)/circuit(s) disconnect switches or to OPERABLE status control circuits inoperable. OR B.2 Issue procedure 30 days changes that identify alternate disconnect methods or control circuits C. Required Action and C.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Compl eti on Time not met. AND C.2 Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months PALO VERDE UNITS 1,2,3 3.3.11-1 AMENDMENT NO.--J

/~

LTOP System 3.4.13 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.13 Low Temperature Overpressure Protection (LTOP) System LCO 3.4.13 An LTOP System shall be OPERABLE consisting of:

a. Two OPERABLE Shutdown Cooling System suction line relief valves with lift settings 5 467 psig aligned to provide overpressure protection for the RCS; or

b. The RCS depressurized and an RCS vent of

Ž 16 square inches.

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

No RCP shall be started unless the secondary side water temperature in each steam generator (SG) is : 100'F above each of the RCS cold leg temperatures.

APPLICABILITY: MODE 4 when any RCS cold leg temperature is

214°F during cooldown, MODE 4 when any RCS cold leg temperature is : 291°F during heatup, MODE 5.

MODE 6 when the reactor vessel head is on.

AU ---- NOTE---*

When one or more cold legs reach 214 0 F, this LCO remains applicable during periods of steady state temperature conditions until all RCS cold leg temperature reach 291 0 F.

If a cooldown is terminated prior to reaching 214°F and a heatup is commenced, this LCO is applicable until all RCS cold e eratures reach 291 0 F.

ACTI ONS CONDITION REQUIRED ACTION COMPLETION TIME A. One required Shutdown LU)_ 3.0. e Cooling System suction ---------

line relief valve inoperable in MODE 4. A.1 Restore required 7 days Shutdown Cooling System suction line relief valve to OPERABLE status.

(continued)

PALO VERDE UNITS 1.2.3 3.4.13-1 AMENDMEINT NO. 17 Z'PIte C )

RCS Leakage Detection Instrumentation 3.4.16 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.16 RCS Leakage Detection Instrumentation LCO 3.4.16 Both of the following RCS leakage detection instrumentation shall be OPERABLE:

a. One containment sump monitor; and

b. One containment atmosphere radioactivity monitor (gaseous and particulate).

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

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Required containment LO304inoapplicable.

sump monitor inoperable.

A.1 Perform SR 3.4.14.1. Once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months AND A.2 Restore containment 30 days sump monitor to OPERABLE status.

(continued)

PALO VERDE UNITS 1,2,3 3.4.16-1 AMENDMENT NO.,H-ýL t-bc& 0V-17ý 0

RCS Leakage Detection Instrumentation 3.4.16 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME

-NOTE -------

B. Required containment LCO 3.0.4 is ot applicable.

atmosphere ----. ..... . ---

radioactivity monitor inoperable. B.1.1 Analyze grab samples Once per of the containment 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months atmosphere.

OR B.1.2 Perform SR 3.4.14.1. Once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months AND B.2 Restore required 30 days containment atmosphere radi oacti vi ty monitor to OPERABLE status.

C. Required Action and C.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Compl eti on Time not met. AND C.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months D. All required monitors D.1 Enter LCO 3.0.3 Immediately inoperable.

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.4.16.1 Perform CHANNEL CHECK of the required 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months containment atmosphere radioactivity monitor.

SR 3.4.16.2 Perform CHANNEL FUNCTIONAL TEST of the 92 days required containment atmosphere radioactivity monitor.

(continued)

PALO VERDE UNITS 1,2,3 3.4.16-2 AMENDMENT NO.

(JPqL C,'/ K

RCS Speci fi c Acti vi ty 3.4.17 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.17 RCS Specific Activity LCO 3.4.17 The specific activity of the reactor coolant shall be within limits.

APPLICABILITY: MODES 1 and 2, MODE 3 with RCS cold leg temperature (Tcold) ->500c'F.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. DOSE EQUIVALENT 1-131

> 1.0 PCi/gm. applicable.

A.1 Verify DOSE Once per EQUIVALENT 1-131 within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months the acceptable region of Figure 3.4.17-1.

AND A.2 Restore DOSE EQUIVALENT 1-131 to within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months limit.

(continued)

PALO VERDE UNITS 1.2,3 3.4.17-1 AMENDMENT NO.44-ý au(

ECCS - Shutdown 3.5.4 Q

3.5 EMERGENCY CORE COOLING SYSTEMS (ECCS) 3.5.4 ECCS - Shutdown LCO 3.5.4 One High Pressure Safety Injection (HPSI) train shall be OPERABLE.

APPLICABILITY: MODE 3 with pressurizer pressure < 1837 psia and with ACTIONS r, -\ ' 5

_ fl -cWW - y CONDITION REQUIRED ACTION COMPLETION TIME A. Required HPSI train A.1 Restore required HPSI 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months inoperable, train to OPERABLE status.

B. Required Action and B.1 Be in MODE 5. 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months associated Completion Time not met.

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.5.4.1 The following SRs are applicable: In accordance with applicable SR 3.5.3.1 SR 3.5.3.5 SRs SR 3.5.3.2 SR 3.5.3.7 SR 3.5.3.3 SR 3.5.3.8 SR 3.5.3.4 PALO VERDE UNITS 1.2.3 3.5.4-1 AMENDMENT NO.-1--

LPutx4 EUfr 7D9/4'

.3~2 Hydrogen Recombiners 3.6.7 3.6 CONTAINMENT SYSTEMS 3.6.7 Hydrogen Recombiners LCO 3.6.7 Two hydrogen recombiners shared among the three uiits shall be OPERABLE.

APPLICABILITY: MODES 1 and 2.

ACTIONS

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

All three PVNGS Units (Units 1, 2, and 3) shall simultaneously comply with the REQUIRED ACTION(s) when the shared portion of the hydrogen recombiner(s) is the cause of a CONDITION.

CONDITION REQUIRED ACTION COMPLETION TIME

-t A. One hydrogen recombiner inoperable.

A.1 Restore hydrogen 30 days recombiner to OPERABLE status.

B. Two hydrogen B.1 Verify by 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months recombiners administrative means inoperable, that the hydrogen AND control function is maintained. Every 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months AND thereafter B.2 Restore one hydrogen 7 days recombiner to OPERABLE status.

C. Required Action and C.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time not met.

PALO VERDE UNITS 1.2,3 3.6.7-1 AMENDMENT NO. t/

Zc Y-71?cýC,ýPy~j9S

ADVs 3.7.4 3.7 PLANT SYSTEMS 3.7.4 Atmospheric Dump Valves (ADVs)

LCO 3.7.4 One ADV line per steam generator shall be OPERABLE.

APPLICABILITY: MODES 1, 2. and 3, MODE 4 when steam generator is being relied upon for heat removal.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One required ADV line A.1 ----- ---NOTE------

inoperable. LCO 3.0 is not appl i cable.

Restore ADV line to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months OPERABLE status.

B. Two required ADV lines B.1 Restore one ADV line 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months inoperable, to OPERABLE status.

C. Required Action and C.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time not met. AND C.2 Be in MODE 4 without 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months reliance on steam generator for heat removal.

PALO VERDE UNITS 1,2,3 3.7.4-1 AMENDMENT NO. 4--7--

3:7~~-

3)

AFW System 3.7.5 3.7 PLANT SYSTEMS 3.7.5 Auxiliary Feedwater (AFW) System LCO 3.7.5 Three AFW trains shall be OPERABLE.

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

Only one AFW train, which includes a motor driven pump, is required to be OPERABLE in MODE 4.

APPLICABILITY: MODES 1. 2, and 3, for heat removal.

ACTIONSMOE 4 when steam genatorisreliedupon CONDITION REQUIRED ACTION COMPLETION TIME A. One steam supply to turbine driven AFW pump inoperable, A.1 Restore affected equipment to OPERABLE status.

7 days AND I

OR 10 days from discovery of NOTE---------- -------- failure to Only applicable if meet the LCO MODE 2 has not been entered following refueling.

One turbine driven AFW pump inoperable in MODE 3 following refueling.

B. One AFW train B.1 Restore AFW train to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months inoperable for reasons OPERABLE status.

other than Condition A AND in MODE 1, 2, or 3.

10 days from discovery of failure to meet the LCO (continued)

PALO VERDE UNITS 1,2.3 3.7.5-1 AMENDMENT NO. ,..(

eýi9CR q-cX'/ýay

AC Sources-- Operating 3.8.1 3.8 ELECTRICAL POWER SYSTEMS 3.8.1 AC Sources - Operating LCO 3.8.1 The following AC electrical sources shall be OPERABLE:

a. Two circuits between the offsite transmission network and the onsite Class 1E AC Electrical Power Distribution System:

b. Two diesel generators (DGs) each capable of supplying one train of the onsite Class 1E AC Electrical Power Distribution System; and

c. Automatic load sequencers for Train A and Train B.

APPLICABILITY: MODES 2. 3. and 4.

D

_ - r ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One required offsite A.1 Perform SR 3.8.1.1 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months circuit inoperable. for required OPERABLE offsite AND circuit.

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

AND A.2 Declare required 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months from feature(s) with no discovery of no offsite power offsite power to available inoperable one train when its redundant concurrent with required feature(s) inoperability of is inoperable. redundant.

requi red feature(s)

AND (continued)

PALO VERDE UNITS 1,2.3 3.8.1-1 AMENDMENT NO. T

Attachment 2 Proposed Technical Specification Changes (Re-typed))

Pages:

1.4-2 3.0-1 3.0-2 3.0-5 3.3.1-1 3.3.1-2 3.3.1-11 3.3.1-12 3.3.2-1 3.3.2-2 3.3.5-1 3.3.5-2 3.3.7-2 3.3.10-1 3.3.11-1 3.4.13-1 3.4.16-1 3.4.16-2 3.4.17-1 3.5.4-1 3.6.7-1 3.7.4-1 3.7.5-1 3.8.1-1

Frequency 1.4 1.4 Frequency EXAMPLES EXAMPLE 1.4-1 (continued)

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY Perform CHANNEL CHECK. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months Example 1.4-1 contains the type of SR most often encountered in the Technical Specifications (TS). The Frequency specifies an interval (12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months ) during which the associated Surveillance must be performed at least one time.

Performance of the Surveillance initiates the subsequent interval. Although the Frequency is stated as 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months , an extension of the time interval to 1.25 times the stated Frequency is allowed by SR 3.0.2 for operational flexibility. The measurement of this interval continues at all times, even when the SR is not required to be met per SR 3.0.1 (such as when the equipment is inoperable, a variable is outside specified limits, or the unit is outside the Applicability of the LCO). If the interval specified by SR 3.0.2 is exceeded while the unit is in a MODE or other specified condition in the Applicability of the LCO, and the performance of the Surveillance is not otherwise modified (refer to Example 1.4-3). then SR 3.0.3 becomes applicable.

If the interval as specified by SR 3.0.2 is exceeded while the unit is not in a MODE or other specified condition in the Applicability of the LCO for which performance of the SR is required, then SR 3.0.4 becomes applicable. The Surveillance must be performed within the Frequency requirements of SR 3.0.2 prior to entry into the MODE or other specified condition, as modified by SR 3.0.3, or the LCO is considered not met (in accordance with SR 3.0.1) and LCO 3.0.4 becomes applicable.

(continued)

PALO VERDE UNITS 1,2.3 1.4-2 AMENDMENT NO. 44-7-,

LCO ADpl i cabi I i ty 3.0 3.0 LIMITING CONDITION FOR OPERATION (LCO) APPLICABILITY LCO 3.0.1 LCOs shall be met during the MODES or other specified conditions in the Applicability, except as provided in LCO 3.0.2 and LCO 3.0.7.

LCO 3.0.2 Upon discovery of a failure to meet an LCO, the Required Actions of the associated Conditions shall be met, except as provided in LCO 3.0.5 and LCO 3.0.6.

If the LCO is met or is no longer applicable prior to expiration of the specified Completion Time(s), completion of the Required Action(s) is not required, unless otherwise stated.

LCO 3.0.3 When an LCO is not met and the associated ACTIONS are not met, an associated ACTION is not provided, or if directed by the associated ACTIONS, the unit shall be placed in a MODE or other specified condition in which the LCO is not applicable. Action shall be initiated within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months to p ace the unit, as applicable, in:

a. MODE 3 within 7 hour8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months s:

b. MODE 5 within 37 hours4.282407e-4 days 0.0103 hours 6.117725e-5 weeks 1.40785e-5 months .

Exceptions to this Specification are stated in the individual Specifications.

Where corrective measures are completed that permit operation in accordance with the LCO or ACTIONS, completion of the actions required by LCO 3.0.3 is not required.

LCO 3.0.3 is only applicable in MODES 1, 2, 3, and 4.

LCO 3.0.4 When an LCO is not met, entry into a MODE or otier specified condition in the Applicability shall only be made:

a. When the associated ACTIONS to be entered permit continued operation in the MODE or other specified condition in the Applicability for an unlimited period of time:

(continued)

PALO VERDE UNITS 1,2,3 3.0-1 AMENDMENT NO. 44-*ý,

LCO Applicability 3.0 3.0 [CO APPLICABILITY LCO 3.0.4 b. After performance of a risk assessment addressing (continued) inoperable systems and components, consideration of the results, determination of the acceptability of entering the MODE or other specified condition in the Applicability, and establishment of risk management actions, if appropriate; exceptions to this Specification are stated in the individual Specifications, or

c. When an allowance is stated in the individual valve, parameter, or other Specification.

This Specification shall not prevent changes in MODES or other specified conditions in the Applicability that are required to comply with ACTIONS or that are par: of a shutdown of the unit.

LCO 3.0.5 Equipment removed from service or declared inoperable to comply with ACTIONS may be returned to service under administrative control solely to perform testing required to demonstrate its OPERABILITY or the OPERABILITY of other equipment. This is an exception to LCO 3.0.2 for the system returned to service under administrative control to perform the testing required to demonstrate OPERABILITY.

LCO 3.0.6 When a supported system LCO is not met solely due to a support system LCO not being met, the Conditions and Required Actions associated with this supported system are not required to be entered. Only the support system LCO ACTIONS are required to be entered. This is an exception to LCO 3.0.2 for the supported system. In this event, an evaluation shall be performed in accordance with Specification 5.5.15, "Safety Function Determination Program (SFDP)." If a loss of safety function is determined to exist by this program, the appropriate Conditions and Required Actions of the LCO in which the loss of safety function exists are required to be entered.

(continued)

PALO VERDE UNITS 1,2.3 3.0-2 AMENDMENT NO. 147_ý ,

SR Applicabi Iity 3.0 3.0 SR APPLICABILITY SR 3.0.3 When the Surveillance is performed within the delay period (continued) and the Surveillance is not met, the LCO must immediately be declared not met, and the applicable Condition(s) must be entered.

SR 3.0.4 Entry into a MODE or other specified condition -n the Applicability of an LCO shall only be made when the LCO's Surveillances have been met within their specified I

Frequency, except as provided by SR 3.0.3. When an LCO is not met due to Surveillances not having been met, entry into a MODE or other specified condition in the Applicability shall only be made in accordance with LCO 3.0.4. This provision shall not prevent entry into MODES or other specified conditions in the Applicability that are required to comply with ACTIONS or that are part of a shutdown of the unit.

PALO VERDE UNITS 1,2.3 3.0-5 AMENDMENT NO. 44-7ý.

RPS Instrumentation - Operating (Before CPC Upgrade) 3.3.1 3.3 INSTRUMENTATION 3.3.1 Reactor Protective System (RPS) Instrumentation - Operating LCO 3.3.1 Four RPS trip and bypass removal channels for each Function in Table 3.3.1-1 shall be OPERABLE.

APPLICABILITY: According to Table 3.3.1-1. (Before CPC Upgrade)

ACTIONS

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

Separate Condition entry is allowed for each RPS Function.

CONDITION REQUIRED ACTION COMPL.ETION TIME A. One or more Functions A.1 Place channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with one automatic RPS bypass or trip.

trip channel inoperable. AND A.2 Restore channel to Prior to OPERABLE status. entering MODE 2 following next MODE 5 entry B. One or more Functions with two automatic RPS trip channels B.1 Place one channel in bypass and the other in trip.

1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months I

inoperable.

(continued)

PALO VERDE UNITS 1,2,3 3.3.1-1 AMENDMENT NO. 4799,

RPS Instrumentation - Operating (Before CPC Upgrade) 3.3.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. One or more Functions C.1 Disable bypass 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with one automatic channel.

bypass removal channel inoperable. OR C.2.1 Place affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months automatic trip channel in bypass or trip.

AND C.2.2 Restore bypass Prior to removal channel and entering MODE 2 associated automatic following next trip channel to MODE 5 entry OPERABLE status.

D. One or more Functions with two automatic bypass removal D.1 Disable bypass channels.

1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months I

channels inoperable. OR D.2 Place one affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months automatic trip channel in bypass and place the other in trip.

E. One or more core E.1 Perform CHANNEL 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months protection calculator FUNCTIONAL TEST on (CPC) channels with a affected CPC.

cabinet high temperature alarm.

(continued)

PALO VERDE UNITS 1,2.3 3.3.1-2 AMENDMENT NO. 4-59,

RPS Instrumentation - Operating (After CPC Upgrade) 3.3.1 3.3 INSTRUMENTATION 3.3.1 Reactor Protective System (RPS) Instrumentation - Operating LCO 3.3.1 Four RPS trip and bypass removal channels for each Function in Table 3.3.1-1 shall be OPERABLE.

APPLICABILITY: According to Table 3.3.1-1. (After CPC Upgrade)

ACTIONS

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

Separate Condition entry is allowed for each RPS Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more Functions A.1 Place channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with one automatic RPS bypass or trip.

trip channel inoperable. AND A.2 Restore channel to Prior, to OPERABLE status. entering MODE 2 following next MODE 5 entry B. One or more Functions B.1 Place one channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with two automatic RPS trip channels bypass and the other in trip.

I inoperable.

(continued)

PALO VERDE UNITS 1,2,3 3.3.1-11 AMENDMENT NO. 4754,

RPS Instrumentation - Operating (After CPC Upgrade) 3.3.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. One or more Functions C.1 Disable bypass 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with one automatic channel.

bypass removal channel inoperable. OR C.2.1 Place affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months automatic trip channel in bypass or trip.

AND C.2.2 Restore bypass Prior to removal channel and entering MODE 2 associated automatic following next trip channel to MODE 5 entry OPERABLE status.

D. One or more Functions D.1 Disable bypass I hour with two automatic channels.

bypass removal channels inoperable.

OR D.2 Place one affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months automatic trip channel in bypass and place the other in trip.

E. Required Action and E.1 Be in MODE 3 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time not met.

(continued)

PALO VERDE UNITS 1.2,3 3.3.1-12 AMENDMENT NO. 4-5-9.

RPS Instrumentation - Shutdown 3.3.2 3.3 INSTRUMENTATION 3.3.2 Reactor Protective System (RPS) Instrumentation - Shutdown LCO 3.3.2 Four RPS trip and bypass removal channels for eac'h Function in Table 3.3.2-1 shall be OPERABLE.

APPLICABILITY: According to Table 3.3.2-1.

ACTIONS

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

Separate condition entry is allowed for each RPS Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more functions A.1 Place channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with one automatic RPS bypass or trip.

trip channel inoperable. AND A.2 Restore channel to Prior to OPERABLE status, entering MODE 2 following next MODE 5 entry B. One or more functions with two automatic RPS trip channels inoperable.

B.1 Place one channel in bypass and place the other in trip.

1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months I

(continued)

PALO VERDE UNITS 1,203 3.3.2-1 AMENDMENT NO. 141,

RPS Instrumentation - Shutdown 3.3.2 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. One or more functions C.1 Disable bypass 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with one automatic channel.

bypass removal channel inoperable. OR C.2.1 Place affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months channel in bypass or trip.

AND C.2.2 Restore bypass Prior to removal channel and entering MODE 2 associated automatic following next trip channel to MODE 5 entry OPERABLE status.

D. One or more functions D.1 Disable bypass 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with two automatic channels.

bypass removal channels inoperable. OR D.2 Place one affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months automatic trip channel bypass and place the other in trip.

E. Required Action and E.1 Open all RTCBs. 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months associated Completion Time not met.

PALO VERDE UNITS 1,2.3 3.3.2-2 AMENDMENT NO. 44-"ý,

ESFAS Ins7rumentation 3.3.5 3.3 INSTRUMENTATION 3.3.5 Engineered Safety Features Actuation System (ESFAS) Instrumentation LCO 3.3.5 Four ESFAS trip and bypass removal channels for each Function in Table 3.3.5-1 shall be OPERABLE.

APPLICABILITY: According to Table 3.3.5-1.

ACTIONS

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

Separate Condition entry is allowed for each ESFAS Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more Functions A.1 Place channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with one automatic bypass or trip.

ESFAS trip channel inoperable. AND A.2 Restore channel to Prior to OPERABLE status. entering MODE 2 following next MODE 5 entry B. One or more Functions B.1 Place one channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with two automatic bypass and the other ESFAS trip channels in trip.

inoperable.

(continued)

PALO VERDE UNITS 1,2.3 3.3.5-1 AMENDMENT NO. 44-'ý,

ESFAS Ins*:rumentation 3.3.5 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. One or more Functions C.1 Disable bypass 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with one automatic channel.

bypass removal channel inoperable. OR C.2.1 Place affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months automatic trip channel in bypass or trip.

AND C.2.2 Restore bypass Prior to removal channel and entering MODE 2 associated automatic following next trip channel to MODE 5 entry OPERABLE status.

D. One or more Functions D.1 Disable bypass 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months with two automatic channels.

bypass removal channels inoperable. OR D.2 Place one affected 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months automatic trip channel in bypass and place the other in trip.

E. Required Action and E.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associ ated Completion Time not met. AND E.2 Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months PALO VERDE UNITS 1.2.3 3.3.5-2 AMENDMENT NO. 44--ý,

DG - LOVS 3.3.7 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B. Two LOVS channels per B.1 Enter applicable 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months DG inoperable. Conditions and Required Actions for the associated DG made inoperable by DG - LOVS instrumentation.

OR B.2 Place one channel in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months bypass and the other channel in trip.

C. More than two LOVS C.1 Restore all but two 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months channels per DG channels to OPERABLE inoperable, status.

D. Required Action and D.1 Enter applicable Immediately associated Completion Conditions and Time not met. Required Actions for the associated DG made inoperable by DG - LOVS instrumentation.

PALO VERDE UNITS 1,2,3 3.3.7-2 AMENDMENT NO. 44-'ý,

PAM Instrumentati on 3.3.10 3.3 INSTRUMENTATION 3.3.10 Post Accident Monitoring (PAM) Instrumentation LCO 3.3.10 The PAM instrumentation for each Function in Table 3.3.10-1 shall be OPERABLE.

APPLICABILITY: MODES 1, 2. and 3.

ACTIONS

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

Separate Condition entry is allowed for each Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more Functions A.1 Restore required 30 days with one required channel to OPERABLE channel inoperable, status.

B. Required Action and B.1 Initiate action in Immeciiately associated Completion accordance with Time of Condition A Specification 5.6.6.

not met.

C. --------- NOTE-------- C.1 Restore one channel 7 days Not applicable to to OPERABLE status.

hydrogen monitor channels.

One or more Functions with two required channels inoperable.

(continued)

PALO VERDE UNITS 1.2.3 3.3.10-1 AMENDMENT NO. 44;,

Remote Shutdown System 3.3.11 3.3 INSTRUMENTATION 3.3.11 Remote Shutdown System LCO 3.3.11 The Remote Shutdown System Instrumentation Functions in Table 3.3.11-1 and each Remote Shutdown System disconnect switch and control circuit shall be OPERABLE.

APPLICABILITY: MODES 1, 2. and 3.

ACTIONS

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

Separate Condition entry is allowed for each Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more required A.1 Restore required 30 days Functions in Table Functions to OPERABLE 3.3.11.1 inoperable, status.

B. One or more remote B.1 Restore required 30 days shutdown system switch(s)/circuit(s) disconnect switches or to OPERABLE status control circuits inoperable. OR B.2 Issue procedure 30 days changes that identify alternate disconnect methods or control circuits C. Required Action and C.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time not met. AND C.2 Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months PALO VERDE UNITS 1,2,3 3.3.11-1 AMENDMENT NO. 44-7ý,

LTOP System 3.4.13 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.13 Low Temperature Overpressure Protection (LTOP) System LCO 3.4.13 An LTOP System shall be OPERABLE consisting of:

a. Two OPERABLE Shutdown Cooling System suction line relief valves with lift settings

467 psig aligned to provide overpressure protection for the RCS; or

b. The RCS depressurized and an RCS vent of

Ž 16 square inches.

NOTE-No RCP shall be started unless the secondary side water temperature in each steam generator (SG) is

100OF above each of the RCS cold leg temperatures.

APPLICABILITY: MODE 4 when any RCS cold leg temperature is

214 0F during cooldown, MODE 4 when any RCS cold leg temperature is

291°F during heatup, MODE 5.

MODE 6 when the reactor vessel head is on.

---------- NOTES

1. When one or more cold legs reach 214 0 F, this LCO remains applicable during periods of steady state temperature I

conditions until all RCS cold leg temperature reach 291 0 F. If a cooldown is terminated prior to reaching 214°F and a heatup is commenced, this LCO is applicable until all RCS cold leg temperatures reach 291 0F.

2. LCO 3.0.4.b is not applicable when entering MODE 4.

I ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A.1 Restore required 7 days A. One required Shutdown Shutdown Cooling Cooling System suction System suction line line relief valve relief valve to inoperable in MODE 4. OPERABLE status.

(continued)

PALO VERDE UNITS 1,2,3 3.4.13-1 AMENDMENT NO. 44-7ý,

RCS Leakage Detection Instrumentation 3.4.16 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.16 RCS Leakage Detection Instrumentation LCO 3.4.16 Both of the following RCS leakage detection instrumentation shall be OPERABLE:

a. One containment sump monitor; and

b. One containment atmosphere radioactivity monitor (gaseous and particulate).

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

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. Required containment A.1 Perform SR 3.4.14.1. Once per sump monitor 24 hcurs inoperable. AND A.2 Restore containment sump monitor to OPERABLE status.

(continued)

PALO VERDE UNITS 1,2,3 3.4.16-1 AMENDMENT NO. 44-7ý,

RCS Leakage Detection Instrumentation 3.4.16 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B. Required containment B.1.1 Analyze grab samples Once per atmosphere of the containment 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months radioactivity monitor atmosphere.

inoperable.

OR B.1.2 Perform SR 3.4.14.1. Once per 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months AND B.2 Restore required 30 days contai nment atmosphere radioactivity monitor to OPERABLE status.

C. Required Action and C.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time not met. AND C.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months D. All required monitors D.1 Enter LCO 3.0.3 Immediately inoperable.

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.4.16.1 Perform CHANNEL CHECK of the required 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months containment atmosphere radioactivity monitor.

SR 3.4.16.2 Perform CHANNEL FUNCTIONAL TEST of the 92 days required containment atmosphere radioactivity monitor.

(continued)

PALO VERDE UNITS 1.2,3 3.4.16-2 AMENDMENT NO. 44-7-,

RCS Specific Activity 3.4.17 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.17 RCS Specific Activity LCO 3.4.17 The specific activity of the reactor coolant shall be within limits.

APPLICABILITY: MODES 1 and 2, MODE 3 with RCS cold leg temperature (TCld) Žý 500-F.

ACTIONS CONDITION REQUIRED ACTION COMDLETION TIME A. DOSE EQUIVALENT 1-131 ----------- NOTE--------

> 1.0 PCi/gm. LCO 3.0.4.c is applicable.

I A.1 Verify DOSE Once per EQUIVALENT 1-131 within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months the acceptable region of Figure 3.4.17-1.

AND A.2 Restore DOSE EQUIVALENT 1-131 to within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months limit.

(continued)

PALO VERDE UNITS 1,2.3 3.4.17-1 AMENDMENT NO. 44-:ý,

ECCS - Shutdown 3.5.4 3.5 EMERGENCY CORE COOLING SYSTEMS (ECCS) 3.5.4 ECCS - Shutdown LCO 3.5.4 One High Pressure Safety Injection (HPSI) train shall be OPERABLE.

APPLICABILITY: MODE 3 with pressurizer pressure < 1837 psia and with RCS T, < 485 0 F.

MODE 4.

ACTIONS

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

LCO 3.0.4.b is not applicable to ECCS High Pressure Safety Injection subsystem when entering MODE 4.

CONDITION REQUIRED ACTION COMPLETION TIME A. Required HPSI train A.1 Restore required HPSI 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months inoperable, train to OPERABLE status.

B. Required Action and B.1 Be in MODE 5. 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months associated Completion Time not met.

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.5.4.1 The following SRs are applicable: In accordance with applicable SR 3.5.3.1 SR 3.5.3.5 SRs SR 3.5.3.2 SR 3.5.3.7 SR 3.5.3.3 SR 3.5.3.8 SR 3.5.3.4 PALO VERDE UNITS 1,2,3 3.5.4-1 AMENDMENT NO. 10.

Hydrogen Recombiners 3.6.7 3.6 CONTAINMENT SYSTEMS 3.6.7 Hydrogen Recombiners LCO 3.6.7 Two hydrogen recombiners shared among the three units shall be OPERABLE.

APPLICABILITY: MODES I and 2.

ACTIONS

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

All three PVNGS Units (Units 1, 2. and 3) shall simultaneously co:mply with the REQUIRED ACTION(s) when the shared portion of the hydrogen recombiner(s) is the cause of a CONDITION.

CONDITION REQUIRED ACTION COMPLETION TIME A. One hydrogen A.1 Restore hydrogen 30 days recombiner inoperable. recombiner to OPERABLE status.

B. Two hydrogen B.1 Verify by 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months recombiners administrative means inoperable. that the hydrogen AND control function is maintained. Every 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months AND thereafter B.2 Restore one hydrogen 7 days recombiner to OPERABLE status.

C. Required Action and C.1 Be in MODE 3. 6 hoirs associated Completion Time not met.

PALO VERDE UNITS 1.2,3 3.6.7-1 AMENDMENT NO. ;4,

ADVs 3.7.4 3.7 PLANT SYSTEMS 3.7.4 Atmospheric Dump Valves (ADVs)

LCO 3.7.4 One ADV line per steam generator shall be OPERABLE.

APPLICABILITY: MODES 1, 2, and 3, MODE 4 when steam generator is being relied upor for heat removal.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One required ADV line A.1 Restore ADV line to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months inoperable. OPERABLE status.

B. Two required ADV lines B.1 Restore one ADV line 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months inoperable, to OPERABLE status.

C. Required Action and C.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time not met. AND C.2 Be in MODE 4 without 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months reliance on steam generator for heat removal.

PALO VERDE UNITS 1.2,3 3.7.4-1 AMENDMENT NO. 4-1-7-,

AFW System 3.7.5 3.7 PLANT SYSTEMS 3.7.5 Auxiliary Feedwater (AFW) System LCO 3.7.5 Three AFW trains shall be OPERABLE.

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

Only one AFW train, which includes a motor driven pump, is required to be OPERABLE in MODE 4.

APPLICABILITY: MODES 1. 2, and 3, MODE 4 when steam generator is relied upon for beat removal.

ACTIONS

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

LCO 3.0.4.b is not applicable.

CONDITION REQUIRED ACTION COMPLETION TIME A. One steam supply to A.1 Restore affected 7 days turbine driven AFW equipment to OPERABLE pump inoperable, status. AND OR 10 days from

-NOTE--- discovery of failure to Only applicable if meet the LCO MODE 2 has not been entered following refueling.

One turbine driven AFW pump inoperable in MODE 3 following refueling.

B. One AFW train B.1 Restore AFW train to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months inoperable for reasons OPERABLE status.

other than Condition A AND in MODE 1. 2. or 3.

10 days from discovery of failure to meet the LCO (continued)

PALO VERDE UNITS 1,2,3 3.7.5-1 AMENDMENT NO. 134,

AC Sources - Operating 3.8.1 3.8 ELECTRICAL POWER SYSTEMS 3.8.1 AC Sources - Operating LCO 3.8.1 The following AC electrical sources shall be OPERABLE:

a. Two circuits between the offsite transmission network and the onsite Class 1E AC Electrical Power' Distribution System:

b. Two diesel generators (DGs) each capable of supplying one train of the onsite Class 1E AC Electrical Power Distribution System: and

c. Automatic load sequencers for Train A and Train B.

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

ACTIONS ACTI-------------N---- NOTE --------------------------------

LCO 3.0.4.b is not applicable to DGs.

CONDITION REQUIRED ACTION COMPLETION TIME A. One required offsite A.1 Perform SR 3.8.1.1 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months circuit inoperable. for required OPERABLE offsite AND circuit.

Once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter AND A.2 Declare required 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months from feature(s) with no discovery of no offsite power offsite power to available inoperable one train when its redundant concurrent with required feature(s) inoDerability of is inoperable. redundant required feature(s)

AND (continued)

PALO VERDE UNITS 1,2.3 3.8.1-1 AMENDMENT NO. 44--7-,

Attachment 3 Regulatory Commitments

Attachment 3 LIST OF REGULATORY COMMITMENTS The following table identifies those actions committed to by APS in this document. Any other statements in this submittal are provided for information purposes and are not considered to be regulatory commitments. Please direct questions regarding these commitments to Thomas N. Weber at (623) 393-5764.

REGULATORY COMMITMENTS DUE DATEEVENT APS will establish the Technical Specification Bases for Implemented TS 3.0.4 as adopted with the applicable license amendment. with amendment

Attachment 4 Changes to Technical Specification Bases Pages Pages:

B 3.0-5 B 3.0-6 (and Insert)

B 3.0-7 B 3.0-18 B 3.0-19 B 3.3.1-46 B 3.3.1-48 B 3.3.2-11 B 3.3.2-12 B 3.3.5-25 B 3.3.7-6 B 3.3.10-17 B 3.3.11-4 B 3.3.11-5 B 3.4.13-8 B 3.4.16-4 B 3.4.17-3 B 3.4.17-4 B 3.5.4-3 B 3.6.7-3 B 3.7.4-3 B 3.7.5-5 B 3.8.1-7

LCO Applicability B 3.0 BASES LCO 3.0.3 The requirements of LCO 3.0.3 do not apply in other specified (continued) conditions of the Applicability (unless in MODE 1, 2. 3, or 4) because the ACTIONS of individual Specifications sufficiently define the remedial measures to be taken.

Exceptions to LCO 3.0.3 are provided in instances where requiring a unit shutdown, in accordance with LCO 3.0.3, would not provide appropriate remedial measures 'or the associated condition of the unit. An example of this is in LCO 3.7.14, "Fuel Storage Pool Water Level." LCO 3.7.14 has an Applicability of "During movement of irradiated fuel assemblies in the fuel storage pool." Therefore, this LCO can be applicable in any or all MODES. If the LCO and the Required Actions of LCO 3.7.14 are not met while in MODE 1, 2, or 3, there is no safety benefit to be gained by placing the unit in a shutdown condition. The Required Action of LCO 3.7.14 of "Suspend movement of irradiated fuel assemblies in fuel storage pool" is the appropriate Required Action to complete in lieu of the actions of LCO 3.0.3. These exceptions are addressed in the individual Specifications.

LCO 3.0.4 LCO 3.0.4 e aab ishes limitations on changes in MODES or other speci f conditions in the Applicability when an LCO is not met. It placing the unit in a MODE or ther specified condition sated in that ApplicabiLity (e.g.,.

4 licability desired to be entered) whe raZ t*

Unit con i ion r suc a ements of P-3. &.

-:continued)

PALO VERDE UNITS 1,2,3 B 3.0-5

$2

LCO Applicability B 3.0 BASES LCO 3.0.4 Compliance with Required Actions that permit continued (continued) operation of the unit for an unlimited period of time in a MODE or other specified condition provides an acceptable level of safety for continued operation. This is without regard to the status of the unit before or after the MODE change. Therefore, in such cases, entry into a MODE or other specified condition in the Applicability may be made in accordance with the provisions of the Required Actions&fThe pvT1ovisis ot tnI. pe. llicatlon sfiOUl not De interpreted as endorsing the failure to exercise the good practice of restoring systems or components to OPERABLE status before entering an associated MODE or other specified condition in the Applicability.

The provisions of LCO 3.0.4 shall not prevent changes in MODES or other specified conditions in the Applicability that are required to comply with ACTIONS. In addition, the

( provisions of LCO 3.0.4 shall not prevent changes in MODES or other specified conditions in the Applicability that result Exceptions 0 3.0.4 are stated in the individual Specifications. The .ons allow entry into MODES or other specified conditions in licability when the associated ACTIONS to be entered do no 'de for continued operation for an unlimited period of time. Exc A-iPs may apply to all the Iof ication.

,LCO -3.0.4 is onLY-4appical '.1W4 'h4enl--

cncing-MeH--4-D unriFMODE 5, MODE 3 f m MODE 4, MODE 2 from MODE 3. or MODEl 1 from any other specified e, LCOition

) MODE 2. Furthe 3.0.4 is applicable when entering in the Applicability only while operating in MODES 1, 2, , r 4. The requirements of LCO 3.0.4 do not apply in MODES 5 6 or in other specified conditions of the Applicability (un ss in MODES L, 2, 3, o

4) because the ACTIONS of individual Specifications uL1- Lco (c~onti nued)

PALO VERDE UNITS 1,2,3 B 3.0-6 REVISION 4-

INSERT "A" LCO 3.0.4.b allows entry into a MODE or other specified condition in the Applicability with the LCO not met after performance of a risk assessment addressing inoperable systems and components, consideration of the results, determination of the acceptability of entering the MODE or other specified condition in the Applicability, and establishment of risk management actions, if appropriate.

The risk assessment may use quantitative, qualitative, or blended approaches, and the risk assessment will be conducted using the plant program, procedures, and criteria in place to implement 10 CFR 50.65(a)(4), which requires that risk impacts of maintenance activities to'be assessed and managed. The risk assessment, for the purposes of LCO 3.0.4 (b), must take into account all inoperable Technical Specification equipment regardless of whether the equipment is included in the normal 10 CFR 50.65(a)(4) risk assessment scope. The risk assessments will be conducted using the procedures and guidance endorsed by Regulatory Guide 1.182, "Assessing and Managing Risk Before Maintenance Activities at Nuclear Power Plants." Regulatory Guide 1.182 endorses the guidance in Section 11 of NUMARC 93-01, "Industry Guideline for Monitoring the Effectiveness of Maintenance at Nuclear Power Plants." These documents address general guidance for conduct of the risk assessment, quantitative and qualitative guidelines for establishing risk management actions, and example risk management actions. These include actions to plan and conduct other activities in a manner that controls overall risk, increased risk awareness by shift and management personnel, actions to reduce the duration of the condition, actions to minimize the magnitude of risk increases (establishment of backup success paths or compensatory measures), and determination that the proposed MODE change is acceptable. Consideration should also be given to the probability of completing restoration such that the requirements of the LCO would be met prior to the expiration of ACTIONS Completion Times that would require exiting the Applicability.

LCO 3.0.4.b may be used with single, or multiple systems and components unavailable.

NUMARC 93-01 provides guidance relative to consideration of simultaneous unavailability of multiple systems and components.

The results of the risk assessment shall be considered in determining the acceptability of entering the MODE or other specified condition in the Applicability, and any corresponding risk management actions. The LCO 3.0.4.b risk assessments do not have to be documented. The Technical Specifications allow continued operation with equipment unavailable in MODE 1 for the duration of the Completion Time. Since this is allowable, and since in general the risk impact in that particular MODE bounds the risk of transitioning into and through the applicable MODES or other specified conditions in the Applicability of the LCO, the use of the LCO 3.0.4.b allowance should be generally acceptable, as long as the risk is assessed and managed as stated above. However, there is a small subset of systems and components that have been determined to be more important to risk and use of the LCO 3.0.4.b allowance is prohibited. The LCOs governing these

system and components contain Notes prohibiting the use of LCO 3.0.4.b by stating that LCO 3.0.4.b is not applicable.

LCO 3.0.4.c allows entry into a MODE or other specified condition in the Applicability with the LCO not met based on a Note in the Specification which states LCO 3.0.4.c is applicable. These specific allowances permit entry into MODES or other specified conditions in the Applicability when the associated ACTIONS to be entered do not provide for continued operation for an unlimited period of time and a risk assessment has not been performed. This allowance may apply to all the ACTIONS or to a specific Required Action of a Specification. The risk assessments performed to justify the use of LCO 3.0.4.b usually only consider systems and components. For this reason, LCO 3.0.4.c is typically applied to Specifications which describe values and parameters (e.g., RCS Specific Activity),

and may be applied to other Specifications based on NRC plant-specific approval.

INSERT "A"

LCO Appl i cabi li ty B 3.0 BASES LCO 3.0.4 Surveillances do not have to be performed on the associated (continued) inoperable equipment (or on variables outside the speci limits), as permitted by SR 3.0.1. Theref is not a violation of SR 3.0.1 or SR3LSurveillanes thatGQ have erforinoperable equipment.

owever. SRs must be met to ensure OPERABILITY prior to declaring the associated equipment OPERABLE (or variable within limits) and restoring compliance with the affected LCO.

LCO 3.0.5 LCO 3.0.5 establishes the allowance for restoring equipment to service under administrative controls when it has been removed from service or declared inoperable to comply with ACTIONS. The sole purpose of this Specification is to provide an exception to LCO 3.0.2 (e.g., to not comply with the applicable Required Action(s)) to allow the performance of required testing to demonstrate:

a. The OPERABILITY of the equipment being returned to service: or

b. The OPERABILITY of other equipment.

The administrative controls ensure the time the equipment is returned to service in conflict with the requirements of the ACTIONS is limited to the time absolutely necessary to perform the required testing to demonstrate OPERABILITY.

This Specification does not provide time to perform any other preventive or corrective maintenance.

An example of demonstrating the OPERABILITY of the equipment being returned to service is reopening a containment isolation valve that has been closed to comply with Required Actions and must be reopened to perform the required testing.

(continued)

PALO VERDE UNITS 1,2,3 B 3.0-7 Lb c-6z- 6y -,

SR Applicability B 3.0 BASES SR 3.0.3 If a Surveillance is not completed within the allowed delay (continued) period, then the equipment is considered inoperable or the variable is considered outside the specified limits and the Completion Times of the Required Actions for the applicable LCO Conditions begin immediately upon expiration of the delay period. If a Surveillance is failed within the delay period, then the equipment is inoperable, or the variable is outside the specified limits and the Completion Times of the Required Actions for the applicable LCO Conditions begin immediately upon the failure of the Surveillance.

Completion of the Surveillance within the delay pE~riod allowed by this Specification, or within the Completion Time of the ACTIONS, restores compliance with SR 3.0.1.

SR 3.0.4 SR 3.0.4 establishes the requirement that all applicable SRs must be met before entry into a MODE or other specified Condition in the Applicability.

This Specification ensures that system and component OPERABILITY requirements and variable limits are met before entry into MODES or other specified conditions in the Applicability for which these systems and components ensure safe operation of the unit.

The provisions of this Specification should not be interpreted as endorsing the failure to exercise the good practice of restoring systems or components to OPERABLE status before entering an associated MODE or other, specified condition in the Applicability.

However, in certain circumstances, failing to meet an SR will not result in SR 3.0.4 restricting a MODE change or other specified condition change. When a system, subsystem, division, component, device, or variable is inoperable or outside its specified limits, the associated SR(s) are not required to be performed, per SR 3.0.1, which states that surveillances do not have to be performed on inoperable equipment. When equipment is inoperable, SR 3.0.4 does not apply to the associated SR(s) since the requirement for the SR(s) to be performed is removed. Therefore, failing to perform the Surveillance(s) within the specified Frequency does not result in an SR 3.0.4 restriction to changing MODES (c:ontinued)

'7ý'TIýJMFI P'r' 'ý1'C"kqr!>(z ý.Cm PALO VERDE UNITS 1,2,3 B 3.0-18 REVISION 4-.Ix' oV-J30a?

SR Appl i cabi I i ty B 3.0 BASES SR 3.0.4 or other specified conditions of the Applicabilii y.

(continued) However, since the LCO is not met in this instance, LCO 3.0.4 will govern any restrictions that may (or may not) apply to MODE or other specified condition changes.

The provisions of SR 3.0.4 shall not prevent changes in MODES or other specified conditions in the Applicability that are required to comply with ACTIONS. In addition, the provisions of SR 3.0.4 shall not prevent changes in MODES or other specified conditions in the Applicability *hat result from any unit shutdown.

The precise requirements for performance of SRs are specified such that exceptions to SR 3.0.4 are not necessary. The specific time frames and conditions necessary for meeting the SRs are specified in the Frequency, in the Surveillance, or both. This allows performance of Surveillances when the prerequisite condition(s) specified in a Surveillance procedure require entry into the MODE or other specified condition in the Applicability of the associated LCO prior to the performance or completion of a Surveillance. A Surveillance that could not be performed until after entering the LCO Applicability.

would have its Frequency specified such that it is not "due" until the specific conditions needed are met. Alternately, the Surveillance may be stated in the form of a Note as not required (to be met or performed) until a particular event, condition, or time has been reached. Further discussion of the specific formats of SRs' annotation is found in Section 1.4, Frequency.

S MODE 5", Qesntering 3 from MODE 4, MODE 2 from M~v MODE , 4 o*rfrom MODE 1 0r- from MODE 2.. urthermore, SR 3.0.4 is applicable when entering any oth ecified ODES condition 1.2. 3 orin 4.the The Applicability only whi e operating I 4 a nd 6. or requirements of SR 3.0.4 oint- Applicability (unless othe 1speied in MODES conditions 2, 3 or4) because the A of individual b e ttkn.f*sures Spbe* to a ke n . -- -

Ca1 fry,~ U)-' isC df / ct L Olin .11 e- i 'i/?/o.]ýp cl Z7 OV' /)OE9 I -M3L1 A b Jh.4b pol~ .1'. C(/ttar-5

'I~.,fo~3'/n3~~ &Q~~~~

PALO VERDE UNITS 1,2.3 B 3.0-19

RPS Instrumentation - Operating B 3.3.1 BASES ACTIONS A.1 and A.2 (continued) automatic trip Function. RPS coincidence logic is two-out-of-four.

If one RPS channel is inoperable, startup or power operation is allowed to continue, providing the inoperable channel is placed in by pass or trip in 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months (Required Action A.1).

The 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months allotted to bypass or trip the channel is sufficient to allow the operator to take all appropriate actions for the failed channel and still ensures that the risk involved in operating with the failed channel is acceptable. The failed channel must be restored to OPERABLE status prior to entering MODE 2 following the next MODE 5 entry. With a channel in bypass. the coincidence logic is now in a two-out-of-three configuration.

The Completion Time of prior to entering MODE 2 following the next MODE 5 entry is based on adequate channel to channel independence, which allows a two-out-of-three channel operation since no single failure will cause or prevent a reactor trip.

B.1 Condition B applies to the failure of two channels in any RPS automatic trip Function.

Rhequired Action is modifie acNote stating that LCO 3.0.i en t applicable. The to-t Nor added tapallow the changing on, even though teo chans rei inoperable one with t I bypassed and one tris< In thise c ratione , the eRPS system is in a one-out-of-wo-Wlogic.

andom failure will prevent protection sy o ensure his is outsid that no

)eration.

Required Action B.1 provides for placing one inoperable channel Completion in Time bypassof and the other 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months . cannel in trip This Completion Time within is the sufficient to allow the operator to take all appropriate actions for the failed channels while ensuring the risk involved in operating with the failed channels is acceptable. With one channel of protective instrumentation bypassed, the RPS is in a two-out-of-three logic; but with another channel failed, the RPS may be operating in a two-out-of-two logic. This is outside the assumptions made in the analyses and should be corrected. To correct the problem, the second channel is placed in trip.

(cDntinued)

PALO VERDE UNITS 1,2,3 B 3.3.1-46 REVISION-5-f W-cLe'oy-Isdc7?

RPS Instrumentation - Operating B 3.3.1 BASES ACTIONS D.1 and D.2 (continued)

The restoration of one affected bypassed automatic trip channel must be completed prior to the next CHANNEL FUNCTIONAL TEST, or the plant must shut down per LCO 3.0.3 as explained in Condition B.

~ T uired Action isrnodifi y a Note stating that LO 3.0. s not applicable. The te was added to allow the changing MODES even though two annels are inoperable, wit channel bypassed an e tripped. In this configuration, rotection system is 'k a one-out-of-two logic, whic " adequate to ensur e-that no random failure will prevent protection system operation.

E.1 (Before CPC Upgrade)

Condition E applies if any CPC cabinet receives a high temperature a1arm. There are redundant temperature sensors in each of the four CPC bays. Since CPC bays B and C also house CEAC calculators 1 and 2, respectively, a high temperature in either of these bays requires entry into LCO 3.3.3, Condition C.

If a CPC cabinet high temperature alarm is received, it is possible for an OPERABLE CPC to be affected and not be completely reliable. Therefore, a CHANNEL FUNCTIONAL TEST must be performed on OPERABLE CPCs within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . The Completion Time of 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months is adequate considering the low probability of undetected failure, the consequences of a single channel failure, and the time required to perform a CHANNEL FUNCTIONAL TEST.

E.1 (After CPC Upgrade)

Condition E is entered when the Required Action and associated Completion Time of Condition A, B, C, or D are not met.

If the Required Actions associated with these Conditions cannot be completed within the required Completion Time, the reactor must be brought to a MODE where the Required Actions do not apply. The allowed Completion Time of 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months is reasonable, based on operating experience, for reaching the required MODE from full power conditions in an orderly manner and without challenging plant systems.

(continued)

B 3.3.1-48 REVISION PALO VERDE UNITS 1,2,3 VERDE UNITS 1,2.3 B 3.3.1-48 REVISION

RPS Instrumentation - Shutdown B 3.3.2 BASES ACTIONS B.1 (continued)

Condition B applies to the failure of two trip channels or associated instrument channels, in any RPS automatic trip function. Required Action B.1 provides for placing one inoperable channel in bypass and the other channel in trip within the Completion Time of 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months . This Completion Time is sufficient to allow the operator to take all appropriate actions for the failed channels and still ensures the risk involved in operating with the failed channels is acceptable.

With one channel of protective instrumentation bypassed, the RPS is in a two-out-of-three logic; but with another channel failed, the RPS may be operating in a two-out-of-two logic.

This is outside the assumptions made in the analyses and should be corrected. To correct the problem, the second channel is placed in trip. This places the RPS in a one-out-of-two logic. If any of the other OPERABLE channels receives a trip signal, the reactor will trip.

One of the two inoperable channels will need to be restored to OPERABLE status prior to the next required CHANNEL FUNCTIONAL TEST because channel surveillance testing on an OPERABLE channel requires that the OPERABLE channel be placed in bypass. However, it is not possible to bypass more than one RPS channel, and placing a second channel in trip will result in a reactor trip. Therefore, if one RPS channel is in trip and a second channel is in bypass, a third inoperable channel would place the unit in LCO 3.0.3.

The Required Action is modified by a Note stating that LCO 3.0.4 is not applib 4le. The Note was ed to allow the hanging of MODES even tho tghtwo channels are 0operable.

w one channel bypassed and otýr-ipped. In tht's.t confi tion, the protection system i a one-out-of-two logic, whi il reet pr s adequate insystem operation. random failure to ensure that-C.1, C.2.1, and C.2.2 Condition C applies to one automatic operating bypass removal channel inoperable. If the operating bypass removal channel for the high logarithmic power level operating bypass cannot be restored to OPERABLE status within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months .

(continued)

PALO VERDE UNITS 1,2.3 B 3.3.2-11 REVISION.-4

RPS Instrumentation - Shutdown B 3.3.2 BASES ACTIONS C.1, C.2.1 and C.2.2 (continued) the associated RPS channel may be considered OPERABLE only if the operating bypass is not in effect. Otherwise, the affected RPS channel must be declared inoperable, as in Condition A, and the operating bypass either removed or the affected automatic channel placed in trip or maintenance (trip channel) bypass. Both the operating bypass removal channel and the associated automatic trip channel ifust be repaired prior to entering MODE 2 following the next MODE 5 entry. The Bases for the Required Actions and required Completion Times are consistent with Condition A.

D.1 and D.2 Condition D applies to two inoperable automatic operating bypass removal channels. If the operating bypass removal channels for two operating bypasses cannot be restcred to OPERABLE status within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months , the associated RPS channel may be considered OPERABLE only if the operating bypass is not in effect. Otherwise, the affected RPS channels must be declared inoperable, as in Condition B. and the operating bypass either removed or one automatic trip channel placed in maintenance (trip channel) bypass and the other in trip within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months . The restoration of one affected bypassed automatic trip channel must be completed prior to the next CHANNEL FUNCTIONAL TEST or the plant must shut down per LCO 3.0.3, as explained in Condition B. Completion Times are consistent with Condition B.

The Required Action is modified by a Note stating that LCO 3.0.4 is not applic e. The Note was addC tc allow th changing of MODES even thou wo channels are in arble, wcannel bypassed and ont ped. In thisN logic, cf iction which is adequ nc system owill prevent protection system ure that no a one-out-of-two failure operation.

1 a-E.1 Condition E is entered when the Required Actions and associated Completion Times of Condition A, B. C, or D are not met.

(continued)

PALO VERDE UNITS 1.2.3 B 3.3.2-12 REVISION.,36-(' Dczz oy-Eco'

ESFAS Instrumentation B 3.3.5 BASES ACTIONS C.1. C.2.1. and C.2.2 (continued)

Condition C applies to one automatic operating bypass removal channel inoperable. The only automatic operating bypass removal on an ESFAS is on the Pressurizer Pressure - Low signal. This operating bypass removal is shared with the RPS Pressurizer Pressure - Low bypass removal.

If the bypass removal channel for any operating bypass cannot be restored to OPERABLE status, the associated ESFAS channel may be considered OPERABLE only if the bypass is not in effect. Otherwise, the affected ESFAS channel must be declared inoperable, as in Condition A, and the operating bypass either removed or the bypass removal channel repaired. The Bases for the Required Actions and required Completion Times are consistent with Condition A.

D.1 and D.2_-

fThe Required Action i modified by a Note stating that "',

LCO 3.0.4 is not appli le. The Note was dded to allow sy

in a hne-out-of-two logic.the ichotection thi~_i, is adequate to ensure that no r ndom failure will prevent protection stem oper Condition D applies to two inoperable automatic cperating bypass removal channels. If the operating bypass removal channels for two operating bypasses cannot be restored to OPERABLE status, the associated ESFAS channel may be considered OPERABLE only if the operating bypass is not in effect. inoperable, the declared Otherwise, as affected ESFASB.channels in Condition mustthebe and either operating bypass removed or the bypass removal channel repaired. The restoration of one affected bypassed automatic trip channel must be completed prior to the next CHANNEL FUNCTIONAL TEST or the plant must shut down per LCO 3.0.3. as explained in Condition B. Completion Times are consistent with Condition B.

(continued)

PALO VERDE UNITS 1.2.3 B 3.3.5-25 REVlSION.Tme

DG - LOVS B 3.3.7 BASES ACTIONS A.1 and A.2 (continued)

Placing this channel in either Condition ensures that logic is in a known configuration. In trip, the LOVS Logic is one-out-of-three. In bypass, the LOVS Logic is two-out-of-three. The 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Completion Time is sufficient to perform these Required Actions.

Once Required Action A.1 has been complied with, Required Action A.2 allows prior to entering MODE 2 following the next MODE 5 entry to repair the inoperable channel. If the channel cannot be restored to OPERABLE status, the plant cannot enter MODE 2 following the next MODE 5 entry. The time allowed to repair or trip the channel is reasonable to repair the affected channel while ensuring that the risk involved in operating with the inoperable channel is acceptable. The prior to entering MODE 2 following the next MODE 5 entry Completion Time is based on adequate channel independence, which allows a two-out-of-three channel operation since no single failure will cause or prevent a system actuation.

B.1 and B.2 Condition B applies if two channels per DG bus are ino~calc The -R d-A di-tie2-by Note stating that LCO 3.0.4 is not a ricable. The Note was added to allow are of MO DE i43hough two channels L inoperable, he changing with one channe assed and one tripped. In oe-out-of-two logic, which is adequ te to ensure that no admfailure will~een-rte-ion system operation;.*

If the channel cannot be placed in bypass or trip *ithin 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months , the Conditions and Required Actions for the associated DG made inoperable by DG - LOVS instrumentation channel are required to be entered.

is required Alternatively, to be bypassed one affected and the other is trippeda in accordance Function with Required logic.

in one-out-of-two Action B.2.

Time is sufficient to perform The 1 This hour places the Completion the Required Actions.

(c~onti nued)

PALO VERDE UNITS 1,2,3 B 3.3.7-6 REVISION- f-e0

PAM Instrumentation B 3.3.10 BASES LCO For loop and steam generator related variables, the required (continued) information is individual loop temperature and individual steam generator level. In these cases two channels are required to be OPERABLE for each loop of steam generator to redundantly provide the necessary information.

In the case of Containment Isolation Valve Position, the important information is the status of the containment penetrations. The LCO requires one position indicator for each active containment isolation valye. This is sufficient to redundantly verify the isolation status of each isolable penetration either via indicated status of the active valve and prior knowledge of the passive valve or via system boundary status. If a normally active containment isolation valve is known to be closed and deactivated, position indication is not needed to determine status. Therefore, the position indication for valves in this state is riot required to be OPERABLE.

APPLICABILITY The PAM instrumentation LCO is applicable in MODES 1, 2.

and 3. These variables are related to the diagnosis and preplanned actions required to mitigate DBAs. The applicable DBAs are assumed to occur in MODES 1, 2, and 3.

In MODES 4. 5, and 6, plant conditions are such that the likelihood of an event occurring that would require PAM instrumentation is low; therefore. PAM instrumentation is not required to be OPERABLE in these MODES.

ACTIONS Note en added in the ACTIONS to exclude the MODEDE change restric CO 3.0.4. This exception allows entry into the applicab e while relying on thehl ACTIONS, even though the ACTION ventually require plant shutdown. This exception is acce e due to the passive function of the using instruments, the oper l 'sability alternate instrument -

to monitor an accident methods, and the low probability of an event requiring ese in truments.

F^Note"has been added in the ACTIONS to clarify the application of Completion Time rules. The Conditions of this Specification may be entered independently =or each Function listed in Table 3.3.10-1. The Completion Time(s) of the inoperable channel(s) of a Function will be tracked separately for each Function starting from the time the Condition was entered for that Function.

(continued)

PALO VERDE UNITS 1,2,3 B 3.3.10-17 REVISION L!)c se ov(AJ3)J

Remote Shutdown System B 3.3.11 BASES LCO Atmospheric Dump valve SGBHV185 has been isolated via (continued) its block valve to snoop for air leakage. Entry into 3.3.11 is NOT required because the control circuitry for SGBHV185 remains operable.

Auxiliary Feedwater pump AFBP01 has been removed from service for maintenance. The supply breaker has been racked out and the control power fuses rolled to off.

Entry into 3.3.11 IS required because the control circuitry for AFBP01 has been disabled.

"B" Class pressurizer back-up heaters are de-energized for the performance of 36ST-9SA02. Entry into 3.3.11 is NOT required because the control circuitry for the "B" Class heaters remains operable.

" "B" and "D" PK battery chargers are in service. The "BD" swing charger is tagged out for maintenance.

Entry into 3.3.11 IS required because the control circuitry for PKB-H16 has been disabled.

APPLICABILITY The Remote Shutdown System LCO is applicable in MODES 1. 2, and 3. This is required so that the unit can be placed and maintained in MODE 3 for an extended period of time from a location other than the control room.

This LCO is not applicable in MODE 4, 5. or 6. In these MODES, the unit is already subcritical and in the condition of reduced RCS energy. Under these conditions, considerable time is available to restore necessary instrument control Functions if control room instruments or control become unavailable.

ACTIONS A lids b dNte d that excludes DtMODE*ange restriction LCO 3.0.*eption allows entry into San applicable MO i'*ble relying on the ACTIONS, even though the ACTIONS may eventu require a plant shutdown. This is acceptable due requiig this sy~tpmto the lo b bility of an event (continued)

PALO VERDE UNITS 1,2,3 B 3.3.11-4 REVISION

Remote Shutdown System B 3.3.11 BASES ACTIONS A Remote Shutdown System division is inoperable when each (continued) Function listed in Table 3.3.11-1 is not accomplished by the required number of channels in Table 3.3.11-1 that satisfies the OPERABILITY criteria for the channel's Function. These criteria are outlined in the LCO section of the Bases.

p_ has been added in the ACTIONS to clarify ;he application of Completion Time rules. The Condi-ions of this Specification may be entered independently for each Function listed in Table 3.3.11-1. The Completion Time(s) of the inoperable channel(s)/train(s) of a Function will be tracked separately for each Function starting from the time I the Condition was entered for that Function.

A.1 Condition A addresses the situation where one or more instrumentation channels of the Remote Shutdown System are inoperable. This includes any Function listed in Table 3.3.11-1.

The Required Action is to restore the channels to OPERABLE status within 30 days. The Completion Time is based on operating experience and the low probability of an event that would require evacuation of the control room.

B.1 and B.2 Condition B addresses the situation where one or more disconnect or control circuits of the Remote Shutdown System are inoperable. The required disconnect and control circuits are listed in PVNGS controlled documents.

The required Action is to restore the required switch(s)/circuit(s) to OPERABLE status or issue procedure changes that identify alternate disconnect methods or control circuits. The Completion Time for either of the two Actions is 30 days.

(continued)

PALO VERDE UNITS 1,2.3 B 3.3.11-5 REVISION fj Cvp- Li0 W

LTOP System B 3.4.13 BASES (continued)

APPLICABILITY temperatures reach 291 0 F. This Note provides clarification (continued) about Applicability intent. Since PVNGS uses two different temperatures at which the Shutdown Cooling System suction line relief valves must be placed in service there is some possibility of confusion. This Note clarifies those circumstances where the Shutdown Cooling System suction line relief valves must be placed in service.

ACTIONS A.1 T eq red Actnismrfedb 1eztig S_ not a licable. D 5 In MODE 4 when any RCS cold leg temperature is < 214'F

' during cooldown or _<291°F during heatup with one Shutdo*wn

{ g .-:"*. Cooling System suction line relief valve inoperable, two le 3 _ Shutdown Cooling System suction line relief valves must I)e restored to OPERABLE status within a Completion Time of

_ # 7 days. Two valves are required to meet the LCO requirernent

and to provide low temperature overpressure mitigation wiiile l*. f~ _withstanding a single failure of an active component.

0v , The Completion Time is based on the facts that only one

&- Shutdown Cooling System suction line relief valve is c *'* JC * . = required to mitigate an overpressure transient and that :he

-* , likelihood of an active failure of the remaining valve p ath C- . during this time period is very low.

B.1

.u J The consequences of operational events that will 0_ .overpressure the RCS are more severe at lower temperaturE (Ref. 6). Thus, one required Shutdown Cooling System Ssuction line relief valve inoperable in MODE 5 or in MODE16 with the head on, the Completion Time to restore inoperat )le

-4 _ valve to OPERABLE status is 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

The 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Completion Time to restore two Shutdown Cool ing J 16 6 System suction line relief valves OPERABLE in MODE 5or in 3 MODE 6 when the vessel head is on is a reasonable amount of Cooling System suction line relief valve failures withoul t

a)* -exposure to a lengthy period with only one Shutdovwn Cooli ing

- Q* System suction line relief valve OPERABLE to protect agai inst

- Q-toverpressure events.

(conti n ied)

PALO VERDE UNITS 1.2,3 B 3.4.13-8 REVISION -

RCS Leakage Detection InstrL~mentation B 3.4.16 BASES (continued)

ACTIONS /" The-A -e of LCO-<.0.4 are not applicable.

provisions that indicates the As a result, a MODE change is allow required en the containment sump and containment atmos radioactivity monitor channels are ineperh* Thi owance is provided becaus

ofJ=*-qeans ar avilable to monitor for RCS LEAKAGE.

A.1 and A.2 If the containment sump monitor is inoperable, no other form of sampling can provide the equivalent information.

However, the containment atmosphere radioactivity monitor will provide indications of changes in leakage. Together with the atmosphere monitor, the periodic surveillance for RCS water inventory balance, SR 3.4.14.1, must be performed at an increased frequency of 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months to provide information that is adequate to detect leakage.

Restoration of the sump monitor to OPERABLE status is required to regain the function in a Completion Time of 30 days after the monitor's failure. This time is acceptable considering the frequency and adequacy of the RCS water inventory balance required by Required Action A.1.

B.1.1, B.1.2. and B.2 With either the gaseous or particulate containment atmosphere radioactivity monitoring instrumentation channels inoperable, alternative action is required. Either grab samples of the containment atmosphere must be taken and analyzed, or water inventory balances, in accordance with SR 3.4.14.1, must be performed to provide alternate periodic information. With a sample obtained and analyzed or an inventory balance performed every 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , the reactor may be operated for up to 30 days to allow restoration of both of the radioactivity monitors.

The 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months interval provides periodic information that is adequate to detect leakage. The 30 day Completion Time recognizes at least one other form of leakage detection is available.

(conti nued)

PALO VERDE UNITS 1,2,3 B 3.4.16-4 REVISION-.- .D

RCS Specific Acti vi ty B 3.4.17 BASES LCO The SGTR accident analysis (Ref. 2) shows that the 2 hour2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months (continued) site boundary dose levels are within acceptable limits.

Violation of the LCO may result in reactor coolant radioactivity levels that could, in the event of an SGTR, lead to site boundary doses that exceed the 10 CFR 100 dose guideline limits.

APPLICABILITY, i In MODES 1 and 2, and in MODE 3 with RCS cold leg temperature >_500 0 F, operation within the LCO limits for DOSE EQUIVALENT 1-131 and gross specific activity is necessary to contain the potential consequences of an SGTR to within the acceptable site boundary dose values.

For operation in MODE 3 with RCS cold leg temperature

< 500 0 F, and in MODES 4 and 5, the release of radioactivity in the event of an SGTR is unlikely since the saturation pressure of the reactor coolant is below the lift pressure settings of the atmospheric dump valves and main steam safety valves.

ACTIONS A.1 and A.2 With the DOSE EQUIVALENT 1-131 greater than the LCO limit, samples at intervals of 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months must be taken to demonstrate the limits of Figure 3.4.17-1 are not exceeded. The Completion Time of 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months is required to obtain and analyze a sample.

Sampling must continue for trending. The DOSE EQUIVALENT 1-131 must be restored to within limits within 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months .

The Completion Time of 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months is required if the limit

[ violation resulted from normal iodine spiking.

A g\'. cc&oi 0 4e,O c9.%Jtxi (Dlb veý,C&.P- eLCYA 0, (conti nued)

PALO VERDE UNITS 1,2,3 B 3.4.17-3 REVISION 1- 0 UX/8dz-

RCS Speci fi c: Acti vi ty B 3.4.17 BASES ACTIONS A.1 and A.2 (continued) he Required Actions of dition A excludes the MODE change r ion of LCO 3.0.4. Nhis exception allows entry into the applica while r-*n on the ACTIONS even d ., T'istho NS ac may eventually e ue 76 4re igni icant conser ism incorporated into the specific activity limit, the low probability of an event which is limiting due to exceeding this limit, and the ability to restore transient specific activity excursions while the plant remains at, or proceeds to power operation.

B.1 If a Required Action and associated Completion Time of Condition A is not met or if the DOSE EQUIVALENT 1-131 is in the unacceptable region of Figure 3.4.17-1, the reactor must be brought to MODE 3 with RCS cold leg temperature < 500OF within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months . The allowed Completion Time of 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months is required to reach MODE 3 below 500°F without challenging plant systems.

C.1 and C.2 With the gross specific activity in excess of the allowed limit, an analysis must be performed within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months to determine DOSE EQUIVALENT 1-131. The Completion Time of 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months is required to obtain and analyze a sample.

The change within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months to MODE 3 and RCS cold leg temperature < 500OF lowers the saturation pressure of the reactor coolant below the setpoints of the main steam safety valves and minimizes the potential for venting the SG to the environment in an SGTR event. The allowed Completion Time of 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months is required to reach MODE 3 below 500°F from full power conditions and without challenging plant systems.

(c:onti nued) ,r2 PALO VERDE UNITS 1,2.3 B 3.4.17-4 REVISION-

ECCS - Shutdown B 3.5.4 BASES ACTIONS A.1 With no HPSI pump OPERABLE, the unit is not prepared to resp )nd to a loss of coolant accident. The 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Compl letion Time to restore at least one HPSI train to OPER/ ABLE status ensures that prompt action is taken to rest )re the required cooling capacity or to initiate actions to pllace the unit in MODE 5, where an ECCS train is not requi red.

B.1 When the Required Action cannot be completed within the requi red Completion Time, a controlled shutdown should be initi ated. Twenty-four hours is reasonable, based on operzating experience, to reach MODE 5 in an orderly manner and vwithout challenging plant systems.

SURVEILLANCE SR . .5.4.1 REQUIREMENTS The aipplicable Surveillance descriptions from Bases 3.5.3 appl3 as they pertain to the required HPSI train.

REFERENCES The aipplicable references from Bases 3.5.3 apply as they perta in to the required HPSI train.

IV1T 0 Y-k GiL N"-C uC ce &Vc Q{ 6L--j c

_3ý(V~~"-_ C 4~- ~D B 3.5.4-3" REVSIO 0'r(

CJC0IAS4AW PALO VERDE UNITS 1.2,3 B 3.5.4-3 REVISION 0

Hydrogen Recombiners B 3.6.7 BASES APPLICABILITY In MODES 3 and 4, both the hydrogen production rate and the (continued) total hydrogen produced after a LOCA would be less than that calculated for the DBA LOCA. Also, because of the limited time in these MODES, the probability of an accident requiring the hydrogen recombiners is low. Therefore, the hydrogen recombiners are not required in MODE 3 or 4.

In MODES 5 and 6. the probability and consequences of a LOCA are low, due to the pressure and temperature limitations.

Therefore, hydrogen recombiners are not required in these MODES.

ACTIONS The required ACTIONS have been modified by a Note stating that all three PVNGS Units (Units 1. 2. and 3) shall simultaneously comply with the REQUIRED ACTION(s) when the shared portion of the hydrogen recombiner(s) is the cause of a CONDITION. This is necessary since the three DVNGS Units share the two hydrogen recombiners that are required by this LCO. It will be necessary for the Control Room of the Palo Verde Unit that discovers an inoperable shared portion of the hydrogen recombiner(s) to notify the other two Palo Verde Unit's Control Rooms of the inoperability.

A.1 With one containment hydrogen recombiner inoperable, the inoperable recombiner must be restored to OPERABIE status within 30 days. In this condition, the remaining OPERABLE hydrogen recombiner is adequate to perform the hydrogen control function. The 30 day Completion Time is based on the availability of the other hydrogen recombiner, tie small probability of a LOCA or MSLB occurring (that woild generate an amount of hydrogen that exceeds the flammability limit).

and the amount of time available after a LOCA or MSLB (should one occur) for operator action to prevent hydrogen accumulation from exceeding the flammability limit.

Requied .. Actio A.!. H~~has been modified by a Note stating that the provisions of LCO 3.0.4 ar-e notm applicable. As a result, sr

/ ainoperable.

MODE change This i *llowed when one hydrogen recombiner a owance is based on the availability is S the other hydrogen rec bbiner, the small probability of aof ll

\ LOCA or MSLB occurring (t ttwould generate an a'nount of hydrogen that exceeds the fla bility limit), and the amount

/ of time available after a LOCA or MSLB (should one occur) for

( operator action to prevent hydrogen accumulation from

1a-continued)

PALO VERDE UNITS 1,2,3 B 3.6.7-3 REVISION

ADVs B 3.7.4 BASES LOC An ADV is considered OPERABLE when it is capable of (continued) providing a controlled relief of the main steam flow, and is capable of fully opening and closing on demand.

APPLICABILITY In MODES 1, 2, and 3. and in MODE 4, when steam generator is being relied upon for heat removal, the ADVs are required to be OPERABLE.

In MODES 5 and 6. an SGTR is not a credible event.

ACTIONS A.1 tion A.1 ismodified by a Note indicating thalt>

LCO 3.0.4 does not app'.

With one required ADV line inoperable, action must be taken to restore the OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months . The 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months Completion Time takes into account the availability of a nonsafety grade backup in the Steam Bypass Control System and MSSVs.

B.1 With two required ADV lines inoperable (one in each steam generator), action must be taken to restore one of the ADV lines to OPERABLE status. As the block valve can be closed to isolate an ADV, some repairs may be possible with the unit at power. The 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months Completion Time is reasonable to repair inoperable ADV lines. based on the availability of the Steam Bypass Control System and MSSVs, and the low probability of an event occurring during this period that requires the ADV lines.

(continued)

PALO VERDE UNITS 1.2,3 B 3.7.4-3 REVISION .G0 L-L9L._ ov?-&5,7 , -,,

AFW System B 3.7.5 BASES APPLICABILITY In MODES 1, 2, and 3, the AFW System is required to be OPERABLE and to function in the event that the MFW System is lost. In addition, the AFW System is required to supply enough makeup water to replace steam generator secondary inventory, lost as the unit cools to MODE 4 conditions.

In MODE 4, the AFW System may be used for heat removal via the steam generator.

In MODES 5 and 6, the steam generators are not normally used for decay heat removal, and the AFW System is not: required.

ACTIONS A.1 If one of the two steam supplies to the turbine driven AFW pumps is inoperable, or if a turbine driven pump is V .inoperable while in MODE 3 immediatelyfollowing refueling (prior to MODE 2). action must be taken to restore OPERABLE s *jstatus within 7 days. The 7 day Completion Time is

$ reasonable based on the following reasons:

, a. For the inoperability of a steam supply to the

,j turbine-driven AFW pump, the 7 day Completion time is reasonable since there is a redundant steam supply

< line for the turbine driven pump.

_b. For the inoperability of a turbine-driven AFW pump while in MODE 3 immediately subsequent to a refueling

outage, the 7 day Completion time is reasorable due to

-j* *,j- the minimal decay heat levels in this situation.

,C. For both the inoperability of a steam supply line to

- , *the c. turbine-driven pump and an inoperable turbine-driven AFW pump while in MODE 3 immediately following a refueling outage, the 7 day Completion time is H -,r reasonable due to the availability of redundant

-*"2 *I OPERABLE motor driven AFW pumps.

7 *' The second Comiletion Time for Required Action A.1

- * *establishes a limit on the maximum time allowed for any

-combination of Conditions to be inoperable during any continuous failure to meet this LCO.

The 10 day Completion Time provides a limitation time

" allowed in this specified Condition after discovery of (continued)

PALO VERDE UNITS 1,2,3 B 3.7.5-5 REVISION X L V Xo 4m - L0 - 2

AC Sources - Operating B 3.8.1 BASES APPLICABILITY The AC power requirements for MODES 5 and 6, and during (continued) movement of irradiated fuel assemblies are covered in LCO 3.8.2, "AC Sources - Shutdown."

A S Condition A applies only when the offsite circuit. is unavailable to commence automatic load sequencing inthe event of a design basis accident (DBA). In cases where the offsite circuit is available for sequencing, but a DBA could cause actuation of the Degraded Voltage Relays, Condition G applies.

A.1 To ensure a highly reliable power source remains with the one offsite circuit inoperable, it is necessary t.o verify S* the OPERABILITY of the remaining required offsite circuit on a more frequent basis. Since the Required Action only A..- specifies "perform," a failure of SR 3.8.1.1 acceptance criteria does not result in a Required Action not. met.

e-- However, if a second required circuit fails SR 3.8.1.1, the second offsite circuit is inoperable, and Condition C, for two offsite circuits inoperable, is entered.

J *A.2 Required Action A.2, which only applies if the train (i.e.,

ESF bus) cannot be powered from an offsite source,, is intended to provide assurance that an event coincident with

4 a single failure of the associated DG will not result in a

3 __ complete loss of safety function of critical redundant required features. These features require Class 1E power from PBA-S03 or PBB-S04 ESF buses to be OPERABLE, and include: charging pumps; radiation monitors Train A RU-29 and Train B RU-30 (TS 3.3.9), Train A RU-31 and Train B RU-

*'----- 145; pressurizer heaters (TS 3.4.9): ECCS (TS 3.5.3 and TS 3.5.4): containment spray (TS 3.6.6); containment, isolation valves NCA-UV-402, NCB-UV-403, WCA-UV-62, and WCB-UV-61 (TS 3.6.3): containment hydrogen monitors (TS 3.3.10): hydrogen recombiners (TS 3.6.7): auxiliary feedwater system (JS T 3.7.5): essential cooling water system (TS 3.7.7): essential s-- spray pond system (1S 3.7.8): essential chilled water system

-JSj (15 3.7.10); control room essential filtration system (JS

,A 3.7.11) control room emergency air temperature control (continued)

PALO VERDE UNITS 1.2,3 B 3.8.1-7 REVISION

~1c~w yV-e~

v t e Letter Sequence Request
TAC:MD3153, Increase Flexibility in Mode Restraints, Correct Example 1.4-1, TSTF-389 (Approved, Closed)
Initiation Request Acceptance... Administration Questions Answers Results Approval Other: ML070350042
MONTHYEAR2006-09-28 [Table View]

ML062830057

Text

Dear Sirs:

Subject:

Enclosures:

Subject:

1.0 DESCRIPTION

3.0 REGULATORY ANALYSIS

1.0 DESCRIPTION

3.0 REGULATORY ANALYSIS

4.0 ENVIRONMENTAL CONSIDERATION

Subject:

1.0 DESCRIPTION

2.0 PROPOSED CHANGE

3.0 TECHNICAL ANALYSIS

4.0 REGULATORY ANALYSIS

1.0 DESCRIPTION

2.0 PROPOSED CHANGE

3.0 TECHNICAL ANALYSIS

4.0 REGULATORY ANALYSIS

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