Text

Technical Specification Changes for License Amendment Request 13-02, Revision to Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 1....
	ML16301A425
Person / Time
Site:	Diablo Canyon
Issue date:	10/27/2016
From:	Welsch J; Pacific Gas & Electric Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	DCL-16-104
	Download: ML16301A425 (81)
	v • d • e

Pacific Gas and Electric Company James M. Welsch Diablo Canyon Power Plant Vice President, Nuclear Generation Mail Code 104/6 P. 0. Box 56 Avila Beach, CA 93424 80 5. 545.3242 Internal: 691.3242 October 27, 2016 Fax: 805.545.4884 PG&E Letter DCL-16-104 U.S. Nuclear Regulatory Commission 10 CFR 50.90 ATTN: Document Control Desk Washington, DC 20555-0001 Docket No. 50-275, OL-DPR-80 Docket No. 50-323, OL-DPR-82 Diablo Canyon Units 1 and 2 Technical Specification Changes for License Amendment Request 13-02.

"Revision to Technical Specifications to Adopt Risk Informed Completion Times TSTF-505. Revision 1. 'Provide Risk-Informed Extended Completion Times- RITSTF Initiative 48"'

Reference:

1. PG&E Letter DCL-13-106, "License Amendment Request 13-02, Revision to Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 1, 'Provide Risk-Informed Extended Completion Times- RITSTF Initiative 48,"' dated November 25, 2013 (ADAMS Accession No. ML13330A557)

2. PG&E Letter DCL-15-007, "Response to NRC Request for Additional Information Regarding License Amendment Request 13-02,

'Revision to Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 1, 'Provide Risk-Informed Extended Completion Times- RITSTF Initiative 48,"' dated February 5, 2015 (ADAMS Accession No. ML15036A592)

3. NRC Letter from Siva P. Lingam to Edward D. Halpin, PG&E, "Diablo Canyon Power Plant, Unit Nos. 1 and 2 - Issuance of Amendments Regarding Revision to Technical Specifications to Adopt Technical Specification Task Force (TSTF) Traveler TSTF-432, Revision 1, 'Change in Technical Specifications End States (WCAP-16294)' (TAC Nos. MF4521 and MF4522)", dated August 27, 2015 (ADAMS Accession No. ML15204A222)

Dear Commissioners and Staff:

In Reference 1, Pacific Gas and Electric Company (PG&E) submitted License Amendment Request (LAR) 13-02 that proposes an amendment that would modify technical specification (TS) requirements to permit the use of risk informed completion times (RICTs) in accordance with Technical Specifications Task Force-50S (TSTF-505), Revision 1, "Provide Risk-Informed Extended Completion Times -

RITSTF Initiative 4b."

A member of the STARS Alliance Callaway

Diablo Canyon

Palo Verde

Wolf Creek

Document Control Desk PG&E Letter DCL-16-1 04 October 27, 2016 Page2 In Reference 2, PG&E submitted responses to NRC Staff Requests for Additional Information (RAis) which, in part, revised the proposed TS changes to implement TSTF-505.

In Reference 3, the Staff issued license amendments 219 (Unit 1) and 221 (Unit 2) to risk-inform TS requirements regarding selected Required Action End States, consistent with TSTF-432, Revision 1, "Change in Technical Specifications End States (WCAP-16294)." These amendments have resulted in changes toTS within the scope of LAR 13-02, and require revisions to the Reference 1 TS page markups.

On June 20, 2016, the NRC held a public meeting to discuss issues associated with TSTF-505 applications. At the meeting, the NRC stated that a revision to the TS Section 5 RICT Program to limit the use of a RICT to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months would facilitate addressing staff issues related to occurrence of an emergent condition where there is a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE. The industry believes a two-tiered RICT is appropriate for these emergent conditions, 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or 7 days depending on the calculated online risk during the RICT. PG&E believes a 7-day RICT can be justified for these emergent conditions when online risk is low. However, PG&E is voluntarily proposing a TS Section 5 RICT Program change to limit the RICT to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months to expedite the NRC approval for Diablo Canyon Power Plant.

In its original submittal of LAR 13-02, the proposed TS markup pages 3.3-29 and 3.3-30 contained inadvertent changes that were not part of the TSTF-505 proposed changes. This letter provides revised TS pages 3.3-29 and 3.3-30 that only contain the TSTF-505 proposed changes.

The Enclosure provides a description of the proposed revisions. Attachment 1 of the Enclosure provides marked-up TS pages to show the proposed changes. of the Enclosure provides revised (clean) TS pages. Attachment 3 of the Enclosure provides marked-up TS Bases pages to show the proposed changes.

These revised TS and TS Bases supersede those previously provided in References 1 and 2.

This information does not affect the results of the technical evaluation or the no significant hazards consideration determination previously transmitted in Reference 1.

This communication contains one revised commitment (as defined in NEI 99-04) in Attachment 4 of the Enclosure.

If you have any questions, or require additional information, please contact Mr. Michael Richardson at (805) 545-4557.

A member of the STARS Alliance Callaway

Diablo Canyon

Palo Verde

Wolf Creek

Document Control Desk PG&E Letter DCL-16-1 04 October 27, 2016 Page3 I state under penalty of perjury that the foregoing is true and correct.

Executed on October 27, 2016.

Sincerely,

~,tv\vJ..L~

James M. Welsch Vice President, Nuclear Generation kjse/4328/50467285 Enclosure cc: Diablo Distribution cc/enc: Kriss M. Kennedy, NRC Region IV Administrator Christopher W. Newport, NRC Senior Resident Inspector Gonzalo L. Perez, Branch Chief, California Department of Public Health Balwant K. Singal, NRC Senior Project Manager A member of the STARS Alliance Callaway

Diablo Canyon

Palo Verde

Wolf Creek

Enclosure PG&E Letter DCL-16-104 Technical Specification Changes for License Amendment Request 13-02, "Revision to Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 1, 'Provide Risk-Informed Extended Completion Times - RITSTF Initiative 48"'

Proposed Change to TS 5.5.20.e On June 20, 2016, the NRC held a public meeting to discuss issues for Technical Specification Task Force (TSTF)-505 applications. At the meeting, the NRC stated that a revision to the Technical Specification (TS) Section 5 Risk-Informed Completion Time (RICT) Program to limit the use of a RICT to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months would

. facilitate addressing Staff issues related to occurrence of an emergent condition where there is a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE. Therefore, PG&E is voluntarily proposing this change to the License Amendment Request (LAR) for TSTF-505 contained in PG&E Letter DCL-13-106, "License Amendment Request 13-02, Revision to Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 1, 'Provide Risk-Informed Extended Completion Times _,

RITSTF Initiative 48,"' dated November 25, 2013. A revised INSERT 38 is included in Attachment 1 to this Enclosure that provides this 24-hour' limitation in TS 5.5.20, Part e. The new retyped (clean) TS page 5.0-17b is contained in Attachment 2 to the Enclosure. This change results in a change to a prior commitment as discussed in Attachment 4 to the Enclosure.

Changes to TS Due to TS End States Amendments On August 27, 2015, the Staff issued license amendments 219 (unit one) and 221 (unit two) to provide risk-informed TS requirements regarding selected Required Action End States, consistent with TSTF-432, Revision 1, "Change in Technical Specifications End States (WCAP-16294)," based on PG&E Letter DCL-14-058, "License Amendment Request 14-03, License Amendment Request for Adoption of Technical Specification Task Force Traveler TSTF-432, Revision 1, 'Change in Technical Specification End States (WCAP-16294),"' dated July 28, 2014 (ADAMS Accession No. ML142098076). These amendments have resulted in changes toTS within the scope of the TSTF-505 LAR 13-02, and require revisions to the original submittal to make conforming changes, as well as to provide current TS pages for implemented amendments 219 and 221 marked up for the TSTF-505 changes.

TSTF-505 added new Conditions to several TS within its scope to address multiple inoperable trains, and used the existing default Conditions for a MODE 5 shutdown for these new Conditions when the Required Action and Completion Time is not met. PG&E has determined that a MODE 5 shutdown is still the appropriate default action for these new Conditions. Since the TS End States amendments changed the default Condition to be a MODE 4 shutdown, PG&E is proposing to restructure the affected TS to provide a separate MODE 5 shutdown default Condition

Enclosure PG&E Letter DCL-16-104 applicable to the new TSTF-505 Conditions. The TS changes for TSTF-505 for the revised TS End States were submitted to the NRC in Attachment 4 to the Enclosure of PG&E Letter DCL-14-058.

The following describes the proposed changes to address the TS End States amendments:

TS 3.3.2 Condition 8 (page 3.3-19): The TS End States amendments changed Required Action 8.2.2 and its associated Completion Time to implement a MODE 4 End State. The TSTF-505 LAR 13-02 deleted this Required Action from Condition 8, and provided a separate Condition to address plant shutdown. A new proposed markup to the revised page 3.3-19 is provided. The default shutdown action for Condition 8 was previously new Condition 88; this is revised to be new Condition CC as shown on revised INSERT 26 for page 3.3-24a. Condition CC also provides the new note associated with the TS End States amendments regarding the nonapplicability of Limiting Condition of Operation (LCO) 3.0.4a when entering MODE 4. The new retyped (clean) TS pages 3.3-19, 3.3-24a, and 3.3-24b are contained in Attachment 2 to the Enclosure.

TS 3.3.2 Condition C (page 3.3-19a): The TS End States amendments changed Required Action C.2.2 and its associated Completion Time to implement a MODE 4 End State. The TSTF-505 LAR 13-02 renumbered this Condition to D and deleted this Required Action, and provided a separate Condition to address plant shutdown. A new proposed markup to the revised page 3.3-19a is provided. The default shutdown action for Condition D was previously new Condition 88; this is revised to be new Condition CC as shown on revised INSERT 26 for page 3.3-24a. Condition CC also provides the new note associated with the TS End States amendments regarding the nonapplicability of LCO 3.0.4a when entering MODE 4. The new retyped (clean) TS page 3.3-19a is contained in Attachment 2 to the Enclosure.

TS 3.5.4 Condition C (page 3.5-7): The TS End States amendments changed Required Action C.2 and its associated Completion Time to implement a MODE 4 End State. The TSTF-505 LAR 13-02 did not impact this Condition. A new proposed markup to the revised page 3.5-7 is provided. The new retyped (clean) TS page 3.5-7 is contained in Attachment 2 to the Enclosure.

TS 3.6.6 Condition 8 (page 3.6-13): The TS End States amendments changed Required Action 8.2 and its associated Completion Time to implement a MODE 4 End State. The TSTF-505 LAR 13-02 did not impact this Condition. A new proposed markup to the revised page 3.6-13 is provided. The new retyped (clean) TS page 3.6-13 is contained in Attachment 2 to the Enclosure.

2

Enclosure PG&E Letter DCL-16-104 TS 3.6.6 ConditionE (page 3.6-14): The TS End States amendments changed Required Action E.2 and its associated Completion Time to implement a MODE 4 End State. The TSTF-505 LAR 13-02 renumbered this Condition to F, and applied the associated Required Actions when a new ConditionE is not met. To implement TSTF-505, the TS 3.6.6 structure is being revised as follows: (1) Condition E is being assigned as the default Condition (Condition F in TSTF-505 LAR 13-02) when the existing Conditions C or D and associated Completion Time is not met; (2) new Condition F (contained in INSERT 30), which addresses emergent conditions that represent a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE if one or more trains are considered "PRA functional," is administratively changed from Condition F in TSTF-505 LAR 13-02; (3) a new Condition G (contained in INSERT 30) is proposed to implement the TSTF-505 MODE 5 shutdown when new Condition F and its associated Completion Time is not met. This assures that the risk-informed MODE 4 End State is not applied to emergent conditions, which represents a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE. A new proposed markup to the revised page 3.6-14 is provided, and a new INSERT 30 is provided for new Condition G in Attachment 1 to the Enclosure. The new retyped (clean) TS pages 3.6-14 and 3.6-14a are contained in Attachment 2 to the Enclosure.

TS 3.7.7 Condition B (page 3.7-14): The TS End States amendments changed Required Action B.2 and its associated Completion Time to implement a MODE 4 End State. The TSTF-505 LAR 13-02 renumbered this Condition to C, and applied the associated Required Actions when a new Condition B is not met. To implement TSTF-505, the TS 3.7.7 structure is being revised as follows: (1) Condition B is being assigned as the default Condition when the existing Condition A and associated Completion Time is not met; (2) new Condition C (contained in INSERT 33), which addresses emergent conditions that represent a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE if one or more trains are considered "PRA functional," is added; (3) a new Condition D (contained in INSERT 33) is proposed to implement the TSTF-505 MODE 5 shutdown when new Condition C and its associated Completion Time is not met. This assures that the risk-informed MODE 4 End State is not applied to emergent conditions, which represents a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE. A new proposed markup to the revised page 3.7-14 is provided, and a revised INSERT 33 is provided for new Conditions C and D in Attachment 1 to the Enclosure. The new retyped (clean) TS pages 3.7-14 and 3.7-15 are contained in Attachment 2 to the Enclosure.

3

Enclosure PG&E Letter DCL-16-1 04 TS 3.7.8 Condition B (page 3.7-16): The TS End States amendments changed Required Action B.2 and its associated Completion Time to implement a MODE 4 End State. The TSTF-505 LAR 13-02 renumbered this Condition to C, and applied the associated Required Actions when a new Condition B is not met. To implement TSTF-505, the TS 3.7.8 structure is being revised as follows: (1) Condition B is being assigned as the default Condition when the existing Condition A and associated Completion Time is not met; (2) new Condition C (contained in INSERT 34), which addresses emergent conditions that represent a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE if one or more trains are considered "PRA functional," is added; (3) a new Condition D (contained in INSERT 34) is proposed to implement the TSTF-505 MODE 5 shutdown when new Condition C and its associated Completion Time is not met. This assures that the risk-informed MODE 4 End State is not applied to emergent conditions, which represents a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE. A new proposed markup to the revised page 3.7-16 is provided, and a revised INSERT 34 is provided for new Conditions C and Din Attachment 1 to the Enclosure. The new retyped (clean) TS pages 3.7-16 and 3.7-16a are contained in Attachment 2 to the Enclosure.

TS 3.8.1 Condition H (page 3.8-3): The TS End States amendments changed Required Action H .2 and its associated Completion Time to implement a MODE 4 End State. The TSTF-505 LAR 13-02 renumbered this Condition to J, and applied the associated Required Actions when either one of two new Conditions H or I is not met. To implement TSTF-505, the TS 3.8.1 structure is being revised as follows: (1) Condition H is being assigned as the default Condition when any of the existing Conditions A - G and associated Completion Time is not met; (2) new Conditions I and J (markup page 3.8-3a, contained in revised INSERT 35), whiQh address emergent conditions that represent a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE if one or more trains are considered "PRA functional," are added; (3) a new Condition K (contained in INSERT 35) is proposed to implement the TSTF-505 MODE 5 shutdown when either of the new Conditions I or J and its associated Completion Time is not met. This assures that the risk-informed MODE 4 End State is not applied to emergent conditions, which represents a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE. New proposed markups to the revised pages 3.8-3 and 3.8-3a are provided, and a revised INSERT 35 is provided for new Conditions I, J, and Kin Attachment 1 to the Enclosure. The new retyped (clean) TS pages 3.8-3, 3.8-3a, and 3.8-3b are contained in to the Enclosure.

4

Enclosure PG&E Letter DCL-16-1 04 TS 3.8.4 ConditionE (page 3.8-18a and page 3.8-19): The TS End States amendments changed Required Action E.2 and its associated Completion Time to implement a MODE 4 End State. The TSTF-505 LAR 13-02 renumbered this Condition to F, and applied the associated Required Actions when a new ConditionE is not met. To implement TSTF-505, the TS 3.8.4 structure is being revised as follows: (1) Condition E is being assigned as the default Condition when any of the existing Conditions A - D and associated Completion Time are not met; (2) new Condition F (contained in INSERT 36),

which addresses emergent conditions that represent a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE if one or more trains are considered "PRA functional," is added; (3) a new Condition G (contained in INSERT 36) is proposed to implement the TSTF-505 MODE 5 shutdown when new Condition F and its associated Completion Time is not met. This assures that the risk-informed MODE 4 End State is not applied to emergent conditions, which represents a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE. Note that the TS End States amendments also moved Condition E to the subsequent page. New proposed markups to the revised pages 3.8-18a and 3.8-19 are provided, and a revised INSERT 36 is provided for new Conditions F and G in Attachment 1 to the Enclosure. The new retyped (clean) TS pages 3.8-18a, 3.8-19, and 3.8-19a are contained in to the Enclosure.

TS 3.8. 7 Condition B (page 3.8-26): The TS End States amendments changed Required Action B.2 and its associated Completion Time to implement a MODE 4 End State. The TSTF-505 LAR 13-02 renumbered this Condition to C, and applied the associated Required Actions when a new Condition B is not met. To implement TSTF-505, the TS 3.8.7 structure is being revised as follows: (1) Condition B is being assigned as the default Condition when the existing Condition A and associated Completion Time is not met; (2) new Condition C (contained in INSERT 37), which addresses emergent conditions that represent a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE if one or more trains are considered "PRA functional," is added; (3) a new Condition D is proposed to implement the TSTF-505 MODE 5 shutdown when new Condition C and its associated Completion Time is not met. This assures that the risk-informed MODE 4 End State is not applied to emergent conditions, whichs represent a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE. A new proposed markup to the revised page 3.8-26 is provided, and a revised INSERT 37 is provided for new Conditions C and D in Attachment 1 to the Enclosure. The new retyped (clean) TS pages 3.8-26 and 3.8-26a are contained in Attachment 2 to the Enclosure.

TS 3.8.9 Condition D (page 3.8-29): The TS End States amendments changed Required Action 0.2 and its associated Completion Time to 5

Enclosure PG&E Letter DCL-16-1 04 implement a MODE 4 End State. The TSTF-505 LAR 13-02, in a supplemental submittal to respond to an NRC request for additional information in PG&E Letter DCL-15-007, "Response to NRC Request for Additional Information Regarding License Amendment Request 13-02, "Revision to Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 1, 'Provide Risk-Informed Extended Completion Times- RITSTF Initiative 4B,'" dated February 5, 2015, renumbered this Condition to ConditionE, and applied the associated Required Actions when a new Condition D is not met. To implement TSTF-505, the TS 3.8.9 structure is being revised as follows: (1) Condition Dis being assigned as the default Condition when any of the existing Conditions A - C and associated Completion Time are not met; (2) new ConditionE (contained in INSERT 39),

which addresses emergent conditions that represent a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE if one or more trains are considered "PRA functional," is added; (3) a new Condition F (contained in INSERT 39) is proposed to implement the TSTF-505 MODE 5 shutdown when new ConditionE and its associated Completion Time is not met. This assures that the risk-informed MODE 4 End State is not applied to emergent conditions, which represents a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE. A new proposed markup to the revised page 3.8-29 is provided, and a revised INSERT 39 is provided for new Conditions E and F in Attachment 1 to the Enclosure. The new retyped (clean) TS pages 3.8-29 and 3.8-30 are contained in Attachment 2 to the Enclosure.

The changes to the TS markups are contained in Attachment 1 to the Enclosure and changed to the retyped (clean) TS pages are contained in Attachment 2 to the Enclosure.

Editorial TS Changes TS 3.3.2 Table 3.3.2-1 (page 3.3-29): The LAR 13-02 for TSTF-505 inadvertently changed the nominal setpoint for Item 4.c from 22 pounds per square inch gage (psig) to 2.3 psig on TS page 3.3-29. This change was not intended to be part of the proposed changes. A new retyped TS page 3.3-29 is provided, which shows the current 22 psig nominal setpoint.

TS 3.3.2 Table 3.3.2*1 (page 3.3-30): The LAR 13-02 for TSTF-505 inadvertently changed footnote designator "(c)" to "I" in three locations. This change was not intended to be part of the proposed changes. A new retyped page 3.3-30 is provided which shows the current footnote designator "(c)".

The changes to the retyped (clean) TS pages are contained in Attachment 2 to the Enclosure.

6

Enclosure PG&E Letter DCL-16-104 TS Bases Changes As noted above, the TS End States amendments resulted in restructuring of several TS associated with TSTF-505 LAR 13-02. This resulted in revisions to several TS Bases pages submitted for information in the TSTF-505 LAR.

TS 3.3.2 Actions B.2.2 and C.2.2: These Actions were revised by the TS End States amendments. The TSTF-505 LAR 13-02 changed Condition C to Condition D, and relocated Actions B.2.1, B.2.2, C.2.1, and C.2.2 to new default Condition BB. These Actions are now default Condition BB (for Condition C) and Condition CC (for Condition D). A revised INSERT B-26 is provided in Attachment 3 to the Enclosure.

TS 3.6.6 Action E.2 was revised by the TS End States amendments. The TSTF-505 LAR 13-02 had previously inserted a new ConditionE and renumbered Condition E to Condition F. This TS has been restructured to accommodate the TS End States amendments changes by retaining Condition E and providing new Conditions F and G. A revised TS Bases page and revised INSERT B-30 are provided in Attachment 3 to the Enclosure.

TS 3. 7. 7 Action B.2 was revised by the TS End States amendments. The TSTF-505 LAR 13-02 had previously inserted a new Condition B and renumbered Condition B to Condition C. This TS has been restructured to accommodate the TS End States amendments changes by retaining Condition Band providing new Conditions C and D. A revised TS Bases page and revised INSERT B-33 are provided in Attachment 3 to the Enclosure.

TS 3.7.8 Action B.2 was revised by the TS End States amendments. The TSTF-505 LAR 13-02 had previously inserted a new Condition B and renumbered Condition B to Condition C. This TS has been restructured to accommodate the TS End States amendments changes by retaining Condition Band providing new Conditions C and D. A revised TS Bases page and revised INSERT B-34 are provided in Attachment 3 to the Enclosure.

TS 3.8.1 Action H.2 was revised by the TS End States amendments. The TSTF-505 LAR 13-02 had previously inserted new Conditions H and I, and renumbered Condition H to Condition J. This TS has been restructured to accommodate the TS End States amendments changes by retaining Condition Hand providing new Conditions I, J, and K. A revised TS Bases page and revised INSERT B-35 are provided in Attachment 3 to the Enclosure.

7

Enclosure PG&E Letter DCL-16-104 TS 3.8.4 Action E.2 was revised by the TS End States amendments. The TSTF-505 LAR 13-02 had previously inserted a new Condition E and renumbered ConditionE to Condition F. This TS has been restructured to accommodate the TS End States amendments changes by retaining Condition E and providing new Conditions F and G. A revised TS Bases page and revised INSERT B-36 are provided in Attachment 3 to the Enclosure.

TS 3.8.7 Action B.2 was revised by the TS End States amendments. The TSTF-505 LAR 13-02 had previously inserted a new Condition B and renumbered Condition B to Condition C. This TS has been restructured to accommodate the TS End States amendments changes by retaining Condition Band providing new Conditions C and D. A revised TS Bases page and revised INSERT B-37 are provided in Attachment 3 to the Enclosure.

TS 3.8.9 Action 0.2 was revised by the TS End States amendments. The TSTF-505 LAR 13-02 had previously deleted Condition E that applied to two inoperable distribution subsystems that results in a loss of safety function.

This TS has been restructured to accommodate the TS End States amendments changes by providing new Conditions E and F. A revised TS Bases page and revised INSERT B-40 are provided in Attachment 3 to the Enclosure.

8

Enclosure Attachment 1 PG&E Letter DCL-16-104 Proposed Technical Specification Changes

ESFAS Instrumentation 3.3.2 3.3 INSTRUMENTATION 3.3.2 Engineered Safety Feature Actuation System (ESFAS) Instrumentation LCO 3.3.2 The ESFAS instrumentation for each Function in Table 3.3.2-1 shall be OPERABLE.

APPLICABILITY: According to Table 3.3.2-1.

ACTIONS

N0 TE-------------------------------------------------------------

Separate Condition entry is allowed for each Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more Functions with A.1 Enter the Condition Immediately one or more required referenced in Table channels or trains 3.3.2-1 for the inoperable. channel(s) or train(s). ) INSERT2 I B. One channel or train B.1 Restore channel or train 48hour~

inoperable. to OPERABLE status.

GR 8.2.1 Be in MODE 3. 54 hours6.25e-4 days 0.015 hours 8.928571e-5 weeks 2.0547e-5 months ANG 8.2.2 NOTE bGO 3.G.4 .a is not af3f3lisa91e when y~

enterin§ MODE 4.

RT 16 Be in MODE 4. eG hours (continued)

DIABLO CANYON - UNITS 1 & 2 3.3-19 Unit 1 -Amendment No. ~. --1--79, 2+9[J Unit 2 -Amendment No. ~. ~. 1-[J

ESFAS Instrumentation 3.3.2 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME G[QI. One train inoperable. ----------------NOTE-----------------

One train may be bypa*ssed for up to 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months for surveillance testing provided the other train is OPERABLE. INSERT 2 G[QI.1 Restore train to 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months OPERABLE status.

GR C.2.1 Be in MODE 3. 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months ANG C.2.2 NOTE LCO 3.0.4 .a is not applicable when entering MODE 4.

Be in MODE 4. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months (continued)

DIABLO CANYON - UNITS 1 & 2 3.3-19a Unit 1 -Amendment No. ~, 4+9, ~ n/

Unit 2 -Amendment No. ~, 4-84-, ~ /I

RWST 3.5.4 3.5 EMERGENCY CORE COOLING SYSTEMS (ECCS) 3.5.4 Refueling Water Storage Tank (RWST)

LCO 3.5.4 The RWST shall be OPERABLE.

APPLICABILITY: MODES 1, 2, 3, and 4 ACTIONS CONDITION REQUIRED ACTION A. RWST boron concentration A.1 Restore RWST to not within limits. OPERABLE status.

OR RWST borated water temperature not within limits.

B. RWST inoperable for B.1 Restore RWST to reasons other than OPERABLE status.

Condition A.

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 AND Time not met.

C.2 ------------NOTE-----------

LCO 3.0.4.a is not applicable when entering MODE 4.

Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months DIABLO CANYON - UNITS 1 & 2 3.5-7 Un~t 1 -Amendment No . ~. 4-99, 200, 24-9[J Umt 2- Amendment No.~. 200, ~. ~

Containment Spray and Cooling Systems 3.6.6 3.6 CONTAINMENT SYSTEMS 3.6.6 Containment Spray and Cooling Systems LCO 3.6.6 The containment fan cooling unit (CFCU) system and two containment spray trains shall be OPERABLE.

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

ACTIONS CONDITION REQUIRED ACTION A. One containment spray A.1 Restore containment train inoperable. spray train to OPERABLE status.

maintenance or inspections.

A.2 Restore containment 14 days spray train to OPERABLE status B. Required Action and B.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition A not met. B.2. -----------N0 T E-----------

LCO 3.0.4.a is not applicable when entering MODE 4.

Be in MODE 4.

C. One required~ CFCU C.1 Restore~

system inoperable such CFCU system to that a minimum of two OPERABLE status.

CFCUs remain OPERABLE.

(continued)

DIABLO CANYON - UNITS 1 & 2 3.6-13 Unit 1 -Amendment No. -t-Ja,200-,~, ~

Unit 2 -Amendment No. -t-Ja,-1-7d-,~,2-4-7, m-[J

Containment Spray and Cooling Systems 3.6.6 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME D. One required containment D.1 Restore one required 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months I INSERT 2 I spray train inoperable and containment spray one required~ CFCU ~to system inoperable such OPERABLE status, that a minimum of two OR CFCUs remain OPERABLE.

D.2 Restore ~ CFCU 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months system to OPERABLE status such that four CFCUs or three CFCUs, each supplied by a different vital bus, are OPERABLE.

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 of Condition C or D AND not met.

E.2 -----------NOTE-----------

LCO 3.0.4.a is not applicable when entering MODE 4.

INSERT 30 Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months I I 4 F. +>No eontainment SJ3ray F.1 Enter LCO 3.0.3. Immediately trains inoJ3erable.

GR One eontainment SJ3ray train inoJ3erable and t>No CFCld systems inoJ3erable sueh that one or less CFClds remain OPERABLE.

GR One or less CFClds OPERABLE.

DIABLO CANYON - UNITS 1 & 2 3.6-14 Unit 1 -Amendment No. ~' ~

Unit 2 -Amendment No. ~' ~' ~

CCW System 3.7.7

3. 7 PLANT SYSTEMS 3.7.7 Vital Component Cooling Water (CCW) System LCO 3. 7. 7 Two vital CCW loops shall be OPERABLE.

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

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One vital CCW loop A.1 ------------N0 T E--------------

inoperable. Enter applicable Conditions and Required Actions of LCO 3.4.6, "RCS Loops- MODE 4,"

for residual heat removal loops made inoperable by CCW. 'INSERT 2 Restore vital CCW loop to 72hour/

OPERABLE status.

B. Required Action and B.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition A not met. B.2 -----------N0 T E-----------

LCO 3.0.4.a is not applicable when entering MODE4.

INSERT 33 Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months I

L; SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.7.7.1 -----------------------------N0 T E----------------------------

Isolation of CCW flow to individual components does not render the CCW System inoperable Verify each CCW manual, power operated, and In accordance with the automatic valve in the flow path servicing safety Surveillance related equipment, that is not locked, sealed, or Frequency Control otherwise secured in position, is in the correct Program position.

(continued)

DIABLO CANYON- UNITS 1 & 2 3.7-14 Unit 1 -Amendment No. ~' :2-00, 24-9[J Unit 2- Amendment No.~' :2-G-i, ~

ASW 3.7.8 3.7 PLANT SYSTEMS 3.7.8 Auxiliary Saltwater (ASW) System LCO 3.7.8 Two ASW trains shall be OPERABLE.

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

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One ASW train inoperable. A.1 ------------N0 TE --------------

Enter applicable Conditions and Required Actions of LCO 3.4.6, "RCS Loops- MODE 4,"

for residual heat removal loops made inoperable by ASW. IINSERT2 Restore ASW train to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months OPERABLE status B. Required Action and B.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition A not met.

B.2 -----------N0 T E-----------

LCO 3.0.4.a is not applicable when entering MODE 4.

INSERT 34 Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months I I DIABLO CANYON- UNITS 1 & 2 3.7-16 Unit 1 -Amendment No.~, ~, ~

Unit 2- Amendment No.~, ~, ~

AC Sources - Operating

3:'8.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. Two required offsite circuits C.1 Declare required 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months from inoperable. feature(s) inoperable discovery of Condition when its redundant C concurrent with required feature(s) is inoperability of inoperable. redundant required features.

AND C.2 Restore one required offsite circuit to OPERABLE status.

D. One required offsite circuit D.1 Restore required offsite inoperable. circuit to OPERABLE status.

AND OR One DG inoperable. D.2 Restore DG to OPERABLE status.

E. Two or more DGs E.1 Ensure at least two DGs inoperable. are OPERABLE.

F. One supply train of the F.1 Restore the DFO transfer DFO transfer system system to OPERABLE inoperable. status.

G. Two supply trains of the G.1 Restore one train of the 1 ho DFO transfer system DFO transfer system to inoperable. OPERABLE status.

H. Required Action and H.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition A, B, C, D, E, F or G not met. H.2 -----------N0 TE -----------

LCO 3.0.4.a is not applicable when entering MODE 4.

Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months (continued)

DIABLO CANYON - UNITS 1 & 2 3.8-3 Unit 1 -Amendment No. ~, :24-9(J Unit 2 -Amendment No. ~' 2-24[]

AC Sources- Operating 3.8.1 ACTIONS (continued)

INSERT 35 I I CONDITION REQUIRED ACTION COMPLETION TIME L. I. T'No or more DGs 1.1 Enter LCO 3.0.3. Immediately inoperable.

ANG One or more reEJYired offsite eireYits inoperable.

J. One or more DGs J.1 Enter LCO 3.0.3. Immediately inoperable.

ANG

+vJo reEJYired offsite eireYits inoperable.

DIABLO CANYON- UNITS 1 & 2 3.8-3a Unit 1 -Amendment No. ~' 2:-W[J n .}-

Unit 2 - Amendment No. ~, ~ f1

DC Sources- Operating 3.8.4 ACTIONS (continued)

CONDITION REQUIRED ACTION B. One battery inoperable. B.1 Restore battery to OPERABLE status.

GR B.2.1.1 NOTE Required Actions B.2.1.1, B.2.1.2, and B.2.2 are applicable, on a one time basis, for Unit 1 cycle 14.

Determine OPERABLE 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months batteries are not inoperable due to common cause failure.

GR B.2.1.2 Perform SR 3.8.4 .1 and 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months SR 3.8.6.1 for OPERABLE batteries.

ANG B.2.2 Restore battery to OPERABLE status.

C. One DC electrical power C.1 Restore DC electrical 2 hour2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months subsystem inoperable for power subsystem to reasons other than OPERABLE status.

Condition A or B.

D. More than one full capacity D.1 Restore the DC electrical 14 days charger receiving power power subsystem to a simultaneously from a configuration wherein single 480 V vital bus. each charger is powered from its associated 480 volt vital bus.

(continued) o/

DIABLO CANYON - UNITS 1 & 2 3.8-18a Unit 1 -Amendment No. -Ja,~.-tOO. ~

Unit 2 -Amendment No. -Ja,-1-74, 2-2--1-[]

DC Sources - Operating 3.8.4 ACTIONS (continued)

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 of Condition ~' 8, c,l AND lor ol not met.

E.2 -----------NOTE-----------

LCO 3.0.4.a is not applicable when entering MODE 4.

I .INSIR: 36 I====================+/-=======~=-~=-~=~=-~=-~=-~=--=E=~=~-=--=--=--=--=--===1=2=h=o=u=rs===========

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.4.1 Verify battery terminal voltage is greater than or In accordance with equal to the minimum established float voltage. the Surveillance Frequency Control Program SR 3.8.4.2 Verify each battery charger supplies ;::: 400 amps at In accordance with greater than or equal to the minimum established the Surveillance float voltage for ;::: 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months . Frequency Control Program Verify each battery charger can recharge the battery to the fully charged state within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months while supplying the largest combined demands of the various continuous steady state loads, after a battery discharge to the bounding design basis event discharge state.

SR 3.8.4.3 -------------------------------NOTES-----------------------------

1. The modified performance discharge test in SR 3.8.6.6 may be performed in lieu of SR 3.8.4.3.

2. This Surveillance shall not be performed in MODE 1, 2, 3, or 4.

Verify battery capacity is adequate to supply, and In accordance with maintain in OPERABLE status, the required the Surveillance emergency loads for the design duty cycle when Frequency Control subjected to a battery service test. Program DIABLO CANYON - UNITS 1 & 2 3.8-19 Un~t 1 -Amendment No. ~.4-72,200, ~

Umt 2 -Amendment No. ~.4-74,2:G-l, ~

Inverters- Operating 3.8.7 3.8 ELECTRICAL POWER SYSTEMS 3.8. 7 Inverters-Operating LCO 3.8.7 Four Class 1E Vital120 V UPS inverters shall be OPERABLE.

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

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One required inverter A.1 -----------N 0 TE ---------------

inoperable. Enter applicable Conditions and Required Actions of LCO 3.8.9, "Distribution Systems-Operating" with any vital 120 V AC bus de-energized . IlNSE Restore inverter to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months OPERABLE status.

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

B.2 -----------N0 TE -----------

LCO 3.0.4.a is not applicable when entering MODE 4.

INSERT 37 Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months I

4 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.7.1 Verify correct inverter voltage and alignment to In accordance with the required AC vital buses. Surveillance Frequency Control Program DIABLO CANYON - UNITS 1 & 2 3.8-26 Unit 1 -Amendment No.~. 2-00, ~

Unit 2 - Amendment No. ~. ~. ~

Distribution Systems - Operating 3.8.9 3.8 ELECTRICAL POWER SYSTEMS 3.8.9 Distribution Systems-Operating LCO 3.8.9 The required Class 1E AC, DC, and 120 VAC vital bus electrical power distribution subsystems shall be OPERABLE.

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

ACTIONS CONDITION REQUIRED ACTION A. One AC electrical power A. 1 Restore AC electrical distribution subsystem power distribution inoperable. subsystem to OPERABLE status.

B. One 120 VAC vital bus B.1 Restore 120 VAC vital subsystem inoperable. bus subsystem to OPERABLE status.

C. One DC electrical power C.1 Restore DC electrical distribution subsystem power distribution inoperable. subsystem to OPERABLE status.

D. Required Action and D.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time lot Condition A, B, o~ AND 19 not met.

D.2 -----------N 0 T E-----------

LCO 3.0.4.a is not applicable when entering MODE 4.

INSERT 39 Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months c; E. =I=1N9 Fe~l:liFeEI Glass ~ E AG, E.~ EnteF LGO 3.0.3. lmmeEiiately QG, eF ~ ~0 VAG lJital lal:lses v;itl=l inef3eFalale ElistFilal:ltien sl:llasystems tl=lat Fesl:llt in a less ef safety fl:lnstien.

DIABLO CANYON - UNITS 1 & 2 3.8-29 Unit 1 -Amendment No. ~. ~. :24-9[J Unit 2 -Amendment No. ~. ~. ~

INSERT 2 (NOTE this INSERT is unchanged from DCL-13-1 06 Attachment 1)

In accordance with the Risk Informed Completion Time Program INSERT 16 (NOTE this INSERT is unchanged from DCL-13-106 Attachment 1)

C. ------------ NOTE ----------- C. 1 Restore at least one 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months channel or train to Not applicable when second OR OPERABLE status.

channel or train intentionally In accordance with the made inoperable.

Risk Informed Completion Time Program Two channels or trains inoperable.

INSERT 17 (NOTE this INSERT is unchanged from DCL-13-1 06 Attachment 1)

E. ------------ NOTE ----------- E.1 Restore at least one 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months train to OPERABLE Not applicable when second OR status.

train intentionally made In accordance with the inoperable.

Risk Informed Completion Time Program Two trains inoperable.

INSERT 26 f\1\.------------ N()TE ----------- f\1\.1 Restore channels to 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months

()PERABLE status.

Not applicable when two or ()R more channels intentionally In accordance with the made inoperable.

Risk Informed

Completion Time Program Two or more channels inoperable.

BB. Required Action and BB.1 Be in M()DE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Conditions C, E, S, T, X , Y, Z, or f\1\ not met. BB.2 Be in M()DE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months CC. Required Action and CC.1 Be in M()DE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Conditions B, D, F, G, H, I, J, K, L, U, orVnot CC.2 -------------N()TE------------- 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months met. LC() 3.0.4a is not applicable when entering M()DE 4.

Be in M()DE 4.

DO. Required Action and 00.1 Be in M()DE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time of Conditions M, N, Q, or R not met.

EE. Required Action and EE.1 Be in M()DE 2. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time of Conditions () or P not met.

INSERT 30 F. ------------ N()TE ----------- F.1 Restore containment spray 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months trains and the CFCU system ()R Not applicable when second to ()PERABLE status.

containment spray train or In accordance with the fourth CFCU intentionally Risk Informed made inoperable.

Completion Time

Program Two containment spray trains inoperable.

()R

()ne containment spray train inoperable and the CFCU system inoperable such that one or less CFCUs remain

()PERABLE.

()R The CFCU system inoperable such that one or less CFCUs remain

()PERABLE.

G. Required Action and G.1 Be in M()DE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition F not met. G.2 Be in M()DE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months INSERT 33 C. ------------ N()TE ----------- C. 1 Restore vital CCW loops 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months to ()PERABLE status. ()R Not applicable when second vital CCW loop In accordance with the intentionally made Risk Informed inoperable.

Completion Time

Program Two vital CCW loops inoperable.

D. Required Action and D.1 Be is M()DE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition C not met. D.2 Be in M()DE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months

INSERT 34 C. ------------ N()TE ----------- C. 1 Restore ASW trains to 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months

()PERABLE status. ()R Not applicable when second ASW train In accordance with the intentionally made Risk Informed inoperable.

Completion Time

Program Two ASW trains inoperable.

D. Required Action and D.1 Be in M()DE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition C not met. D.2 Be in M()DE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months

INSERT 35 I. ------------ NOTE ----------- 1.1 Restore required AC 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months sources to OPERABLE Not applicable when offsite OR status.

circuit or second DG In accordance with the intentionally made Risk Informed inoperable.

Completion Time

Program Two or more DGs inoperable.

AND One or more required offsite circuits inoperable.

J. ------------ NOTE ----------- J.1 Restore required AC 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months sources to OPERABLE Not applicable when DG or OR status.

second offsite circuit In accordance with the intentionally made Risk Informed inoperable.

Completion Time

Program One or more DGs inoperable.

AND Two required offsite circuits inoperable.

K. Required Action and K.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition I or J not met. K.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months

INSERT 36 F. ------------ NOTE: ----------- F.1 Restore DC electrical power 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months subsystems to OPERABLE Not applicable when OR status.

second DC electrical power In accordance with the subsystem intentionally Risk Informed made inoperable.

Completion Time

Program Two or more DC electrical power subsystems inoperable.

G. Required Action and G. 1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition F not met. G.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months INSERT 37 C. ------------ NOTE ----------- C.1 Restore inverters to 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months OPERABLE status.

Not applicable when two or OR more required inverters In accordance with the intentionally made Risk Informed inoperable.

Completion Time

Program Two or more required inverters inoperable.

D. Required Action and D.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition C not met. D.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months

INSERT 38 5.5.20 Risk Informed Completion Time Program This program provides controls to calculate a Risk Informed Completion Time (RICT) and must be implemented in accordance with NEI 06-09, Revision 0-A, "Risk-Managed Technical Specifications (RMTS) Guidelines." The program shall include the following:

a. The RICT may not exceed 30 days;

b. A RICT may only be utilized in MODE 1 and 2;

c. When a RICT is being used, any plant configuration change within the scope of the Risk Informed Completion Time Program must be considered for the effect on the RICT.

1. For planned changes, the revised RICT must be determined prior to implementation of the change in configuration.

2. For emergent conditions, the revised RICT must be determined within the time limits of the Required Action Completion Time (i.e., not the RICT) or 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months after the plant configuration change, whichever is less.

3. Revising the RICT is not required if the plant configuration change would lower plant risk and would result in a longer RICT.

d. Use of a RICT is not permitted for voluntary entry into a configuration which represents a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE.

e. Use of a RICT, not to exceed 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , is permitted for emergent conditions which represent a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE if one or more of the trains are considered "PRA functional as defined in Section 2.3.1 of NEI 06-09 ..

INSERT 39 E. ------------ N()TE ----------- E.1 Restore electrical power 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months distribution subsystems to ()R Not applicable when two or

()PERABLE status.

more electrical power In accordance with the distribution subsystems Risk Informed intentionally made Completion Time inoperable.

Program Two or more electrical power distribution subsystems inoperable.

F. Required Action and F.1 Be in M()DE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition E not met. F.2 Be in M()DE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months

Enclosure Attachment 2 PG&E Letter DCL-16-104 Revised Technical Specification Pages (Note: pages changed in this letter are identified below by a revision bar and the revised pages are contained in Attachment 2)

Remove Page Insert Page 1.3-10 1.3-10 1.3-11 1.3-12 3.3-1 3.3-1 3.3-1a 3.3-2 3.3-2 3.3-3 3.3-3 3.3-3a 3.3-3a 3.3-4 3.3-4 3.3-4a 3.3-4a 3.3-4b 3.3-5 3.3-5 3.3-5a 3.3-6 3.3-6 3.3-7 3.3-7 3.3-12 3.3-12 3.3-13 3.3-13 3.3-14 3.3-14 3.3-15 3.3-15 3.3-16 3.3-16 3.3-19 3.3-19 1 3.3-19a 1 3.3-20 3.3-20 3.3-20a 3.3-20a 3.3-21 3.3-21 3.3-22 3.3-22 3.3-22a 3.3-23 3.3-23 3.3-24 3.3-24 3.3-24a 3.3-24a I 3.3-24b I 3.3-27 3.3-27 3.3-28 3.3-28 3.3-29 3.3-29 I 3.3-30 3.3-30 I 3.3-31 3.3-31 3.3-32 3.3-32 3.3-33 3.3-33 3.4-16 3.4-16 3.4-16a

Enclosure Attachment 2 PG&E Letter DCL-16-104 Revised Technical Specification Pages (continued)

Remove Page Insert Page 3.4-18 3.4-18 3.4-18a 3.4-19 3.4-19 3.4-20 3.4-20 3.4-21 3.4-21 3.5-1 3.5-1 3.5-1a 3.5-3 3.5-3 3.5-7 3.5-7 I 3.5-7a 3.6-4 3.6-4 3.6-5 3.6-5 3.6-6 3.6-6 3.6-7 3.6-7 3.6-8 3.6-8 3.6-13 3.6-13 I 3.6-14 3.6-14 I 3.6-14a 3.7-4 3.7-4 3.7-8 3.7-8 3.7-10 3.7-10 3.7-11 3.7-11 3.7-13 3.7-13 3.7-14 3.7-14 I 3.7-15 3.7-15 I 3.7-16 3.7-16 1 3.7-16a I 3.8-1 3.8-1 3.8-2 3.8-2 3.8-3 3.8-3 I 3.8-3a I 3.8-3b I 3.8-16 3.8-16 3.8-18 3.8-18 3.8-18a 3.8-18a I 3.8-19 1 3.8-19a 1 3.8-26 3.8-26 I 3.8-26a I 3.8-29 3.8-29 I

Enclosure Attachment 2 PG&E Letter DCL-16-104 Revised Technical Specification Pages (continued)

Remove Page Insert Page 3.8-30 3.8-30 I 5.0-17a 5.0-17a 5.0-17b I

ESFAS Instrumentation 3.3.2 3.3 INSTRUMENTATION 3.3.2 Engineered Safety Feature Actuation System (ESFAS) Instrumentation LCO 3.3.2 The ESFAS instrumentation 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 Function.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more Functions with A. 1 Enter the Condition Immediately one or more required referenced in Table channels or trains 3.3.2-1 for the inoperable. channel(s) or train(s).

B. One channel or train B.1 Restore channel or train 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months inoperable. to OPERABLE status.

OR In accordance with the Risk Informed Completion Time Program C. ----------- NOTE ---------------- C.1 Restore at least one 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Not applicable when channel or train to OR second channel or train OPERABLE status.

intentionally made In accordance with the inoperable. Risk Informed

Completion Time Two channels or trains Program inoperable.

(continued)

DIABLO CANYON - UNITS 1 & 2 3.3-19 Unit 1 -Amendment No. --1--Je, 79, 2-4-9, Unit 2- Amendment No. --1--Je, -&i, ~,

ESFAS Instrumentation 3.3.2 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME D. One train inoperable. ----------------NOTE-----------------

One train may be bypassed for up to 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months for surveillance testing provided the other train is OPERABLE.

D.1 Restore train to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months OPERABLE status.

OR In accordance with the Risk Informed Completion Time Program E. ----------- NOTE ---------------- E.1 Restore at least one 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Not applicable when train to OPERABLE OR second train intentionally status.

made inoperable. In accordance with the

Risk Informed Two trains inoperable. Completion Time Program (continued)

DIABLO CANYON - UNITS 1 & 2 3.3-19a Unit 1 -Amendment No. Je, 79, ~~

Unit 2 -Amendment No. Je, ~~ ~~

ESFAS Instrumentation 3.3.2 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME Z. One channel inoperable. ------------------NOTE-----------------

The inoperable channel and one additional channel may be surveillance tested in bypass for up to 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months only if any function 1.c channel associated with the inoperable channel is in trip. This note is not intended to allow simultaneous testing of coincident channels on a routine basis.

Z.1 Place channel in bypass. 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months I

-i AA. ------------ NOTE ----------- AA.1 Restore channels to 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Not applicable when two or OPERABLE status.

OR more channels intentionally made inoperable. In accordance with the

Risk Informed Two or more channels Completion Time inoperable. Program BB. Required Action and BB.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time of Conditions C, E, S, AND T, X, Y, Z, or AA not met.

BB.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months CC. Required Action and CC.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time of Conditions B, D, F, AND G, H, I, J, K, L, U, orV not CC.2 -------------NOTE------------- 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months met. LCO 3.0.4a is not applicable when entering MODE 4.

Be in MODE 4.

DO. Required Action and 00.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time of Conditions M, N, Q, or R not met.

(continued)

DIABLO CANYON - UNITS 1 & 2 3.3-24a Unit 1 -Amendment No. ~ ~, ~, 4-79, Unit 2 -Amendment No. ~ ~' ~' --1-&1-,

ESFAS Instrumentation 3.3.2 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME EE. Required Action and EE.1 Be in MODE 2. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time of Conditions 0 or P not met.

DIABLO CANYON - UNITS 1 & 2 3.3-24b Unit 1 -Amendment No.

Unit 2 -Amendment No.

ESFAS Instrumentation 3.3.2 Table 3.3.2-1 (page 3 of 7)

Engineered Safety feature Actuation System Instrumentation APPLICABLE MODES OR OTHER NOMINAL(a)

SPECIFIED REQUIRED SURVEILLANCE ALLOWABLE TRIP FUNCTION CONDITIONS CHANNELS CONDITIONS REQUIREMENTS VALUE SETPOINT

3. Containment Isolation (continued)

b. Phase B Isolation (1) Manual 1 ,2,3,4 2 per train B,C SR 3.3.2.8 NA NA Initiation (2) Automatic 1,2,3,4 2 trains D, E SR 3.3.2 .2 NA NA Actuation SR 3.3.2.4 Logic and SR 3.3.2.6 Actuation Relays (3) Contain- 1,2,3,4 4 Z, AA SR 3.3.2.1 :::; 22.12 psig 22 psig ment SR 3.3.2.5 Pressure SR 3.3.2.9 High-High

4. Steam Line Isolation

a. Manual 1 ,2(i),3(i) 1/valve w SR 3.3.2.8 NA NA Initiation

b. Automatic 1 ,2(i),3(i) 2 trains K, L SR 3.3.2.2 NA NA Actuation SR 3.3.2.4 Logic and SR 3.3.2.6 Actuation Relays

c. Containment 1 ,2°),3(i) 4 H, I SR 3.3.2.1 :::; 22.12 psig 22.0 psig Pressure- SR 3.3.2.5 High -High SR 3.3.2.9 SR 3.3 .2.10 (continued)

(a) A channel is OPERABLE with an actual Trip Setpoint value outside its calibration tolerance band provided the Trip Setpoint value is conservative with respect to its associated Allowable Value and the channel is re-adjusted to within the established calibration tolerance band of the Nominal Trip Setpoint. A Trip Setpoint may be set more conservative than the Nominal Trip Setpoint as necessary in response to plant conditio'ns.

(i) Except when all MSIVs are closed and de-activated.

DIABLO CANYON - UNITS 1 & 2 3.3-29 Unit 1 -Amendment No. 4-3a, ~.

Unit 2 -Amendment No. 4-3a, ~.

ESFAS Instrumentation 3.3.2 Table 3.3.2-1 (page 4 of 7)

Engineered Safety feature Actuation System Instrumentation APPLICABLE MODES OR OTHER NOMINAL (a)

SPECIFIED REQUIRED SURVEILLANCE ALLOWABLE TRIP FUNCTION CONDITIONS CHANNELS CONDITIONS REQUIREMENTS VALUE SETPOINT

4. Steam Line Isolation (continued)

d. Steam Line Pressure (1) Low 1,2(il, 3(b)(i) 3 per steam F, G SR 3.3.2.1 ;:: 597.6(c) 600(c) psig line SR 3.3.2.5 psig SR 3.3.2.9 SR 3.3 .2.10 (2) Negative 3(g)(i) 3 per steam F SR 3.3.2.1 :::; 102.4 (h) 100 (h)

Rate-High line SR 3.3.2.5 psi/sec psi/sec SR 3.3.2.9 SR 3.3.2.10

e. Not used.

f. Not used

g. Not used

h. Not used

5. Feedwater Isolation

a. Automatic 2 trains M,N SR 3.3 .2.2 NA NA Actuation SR 3.3.2.4 Logic and SR 3.3.2.6 Actuation Relays (continued)

(a) A channel is OPERABLE with an actual Trip Setpoint value outside its calibration tolerance band provided the Trip Setpoint value is conservative with respect to its associated Allowable Value and the channel is re-adjusted to within the established calibration tolerance band of the Nominal Trip Setpoint. A Trip Setpoint may be set more conservative than the Nominal Trip Setpoint as necessary in response to plant conditions.

(b) Above the P-11 (Pressurizer Pressure) interlock and below the P-11 interlock unless the Function is blocked.

(c) Time constants used in the lead/lag compensator are t1 =50 seconds and h =5 seconds (g) Below the P-11 (Pressurizer Pressure). However, may be blocked below P-11 when Safety Injection on Steam Line Pressure-Low is not blocked.

(h) Time constant utilized in the rate/lag compensator are b = 50 sec and t4 = 50 sec.

(i) Except when all MSIVs are closed and de-activated.

U) Except when all MFIVs, MFRVs, and associated bypass valves are closed and de-activated or isolated by a closed manual valve.

DIABLO CANYON - UNITS 1 & 2 3.3-30 Unit 1 -Amendment No. ~' -1-J, Unit 2 -Amendment No. ~' 7-5,

RWST 3.5.4 3.5 EMERGENCY CORE COOLING SYSTEMS (ECCS) 3.5.4 Refueling Water Storage Tank (RWST) .

LCO 3.5.4 The RWST shall be OPERABLE.

APPLICABILITY: MODES 1, 2, 3, and 4 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME

. A. RWST boron concentration A. 1 Restore RWST to 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months not within limits. OPERABLE status.

OR OR RWST borated water In accordance with temperature not within the Risk Informed limits. Completion Time Program B. RWST inoperable for B.1 Restore RWST to 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months reasons other than OPERABLE status.

Condition A. OR In accordance with the Risk Informed Completion Time Program 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 AND Time not met.

C.2 ------------NOTE-----------

LCO 3.0.4.a is not applicable when entering MODE 4.

Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months DIABLO CANYON - UNITS 1 & 2 3.5-7 Unit 1 -Amendment No. ~' 4-9-9, 2-00, 249, Unit 2 -Amendment No. ~' 2-00, ~' ~'

Containment Spray and Cooling Systems 3.6.6 3.6 CONTAINMENT SYSTEMS 3.6.6 Containment Spray and Cooling Systems LCO 3.6.6 The containment fan cooling unit (CFCU) system and two containment spray trains shall be OPERABLE.

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

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One containment spray A. 1 Restore containment 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months train inoperable. spray train to OPERABLE status. OR In accordance with the Risk Informed Completion Time Program B. Required Action and B.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition A not met. B.2. -----------N0 T E-----------

LCO 3.0.4.a is not applicable when entering MODE4.

Be in MODE 4. 54 hours6.25e-4 days 0.015 hours 8.928571e-5 weeks 2.0547e-5 months C. The CFCU system C.1 Restore the CFCU 7 days inoperable such that a system to OPERABLE minimum of two CFCUs status. OR remain OPERABLE.

In accordance with the Risk Informed Completion Time Program (continued)

DIABLO CANYON - UNITS 1 & 2 3.6-13 Unit 1 -Amendment No. ~~~,24-a, 249, Unit 2 -Amendment No. ~ , 4-M,2-W,~, ~~

Containment Spray and Cooling Systems

- 3.6.6 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME D. One containment spray D.1 Restore containment 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months train inoperable and the spray train to OPERABLE CFCU system inoperable status, OR such that a minimum of two OR In accordance with CFCUs remain OPERABLE. the Risk Informed Completion Time Program D.2 Restore the CFCU 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months system to OPERABLE status such that four OR CFCUs or three CFCUs, In accordance with each supplied by a the Risk Informed different vital bus, are Completion Time OPERABLE.

Program 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 of Condition C or D AND not met.

E.2 -----------NOTE-----------

LCO 3.0.4.a is not applicable when entering MODE 4.

I Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months (continued)

DIABLO CANYON - UNITS 1 & 2 3.6-14 Unit 1 -Amendment No. Ja, ~.

Unit 2 -Amendment No. Ja, 4--7-J, ~.

Containment Spray and Cooling Systems 3.6.6 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME F. ------------ NOTE ----------- F.1 Restore containment 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Not applicable when second spray trains and the containment spray train or CFCU system to OR fourth CFCU intentionally OPERABLE status.

made inoperable. In accordance with the

Risk Informed Completion Time Two containment spray Program trains inoperable.

OR One containment spray train inoperable and the CFCU system inoperable such that one or less CFCUs remain OPERABLE.

OR The CFCU system inoperable such that one or less CFCUs remain OPERABLE.

G. Required Action and G.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time of Condition F not met. AND G.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months DIABLO CANYON - UNITS 1 & 2 3.6-14a Unit 1 -Amendment No. ~'

Unit 2 -Amendment No. ~'

CCW System 3.7.7 3.7 PLANT SYSTEMS 3.7.7 Vital Component Cooling Water (CCW) System LCO 3.7.7 Two vital CCW loops shall be OPERABLE.

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

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One vital CCW loop A. 1 ------------NOTE--------------

inoperable. Enter applicable Conditions and Required

_/

Actions of LCO 3.4.6, "RCS Loops - MODE 4,"

for residual heat removal loops made inoperable by CCW.

Restore vital CCW loop to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months OPERABLE status.

OR In accordance with the Risk Informed Completion Time Program B. Required Action and B.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition A not met. B.2 -----------NOTE-----------

LCO 3.0.4.a is not applicable when entering MODE 4.

Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months (continued)

DIABLO CANYON - UNITS 1 & 2 3.7-14 Unit 1 -Amendment No. ~~ :2-00, ~~

Unit 2 -Amendment No. ~~ 2m, ~~

CCW System 3.7.7 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. -----------NOTE--------------- C. 1 Restore vital CCW loops 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Not applicable when to OPERABLE status.

second vital CCW loop OR intentionally made In accordance with the inoperable.

Risk Informed

Completion Time Two vital CCW loops Program inoperable.

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

D.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.7.7.1 -----------------------------NOTE----------------------------

Isolation of CCW flow to individual components does not render the CCW System inoperable Verify each CCW manual, power operated, and In accordance with automatic valve in the flow path servicing safety the Surveillance related equipment, that is not locked, sealed, or Frequency Control otherwise secured in position , is in the correct Program position.

SR 3.7.7.2 Verify each CCW automatic valve in the flow path that In accordance with is not locked, sealed , or otherwise secured in the Surveillance position, actuates to the correct position on an actual Frequency Control or simulated actuation signal. Program SR 3.7.7.3 Verify each CCW pump starts automatically on an In accordance with actual or simulated actuation signal. the Surveillance Frequency Control Program DIABLO CANYON - UNITS 1 & 2 3.7-15 Unit 1 -Amendment No. Ja, ~~

Unit 2 -Amendment No. Ja, 2-Q.i,

ASW 3.7.8 3.7 PLANT SYSTEMS 3.7.8 Auxiliary Saltwater (ASW) System LCO 3.7.8 Two ASW trains shall be OPERABLE.

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

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One ASW train inoperable. A. 1 ------------NOTE--------------

Enter applicable Conditions and Required Actions of LCO 3.4.6, "RCS Loops- MODE 4,"

for residual heat removal loops made inoperable by ASW.

Restore ASW train to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months OPERABLE status OR In accordance with the Risk Informed Completion Time Program B. Required Action and B.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition A not met. -----------N 0 T E-----------

B.2 LCO 3.0.4.a is not applicable when entering MODE 4.

Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months (continued)

DIABLO CANYON - UNITS 1 & 2 3.7-16 Unit 1 -Amendment No. ~, ~, 4-9, Unit 2 -Amendment No. ~' 2-G-4-, ~'

ASW 3.7.8 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. -----------NOTE--------------- C.1 Restore ASW trains to 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Not applicable when OPERABLE status.

second ASW train OR intentionally made In accordance with the inoperable. Risk Informed

Completion Time Two ASW trains Program inoperable.

D. Required Action and D.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time of Condition C not AND met. D.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.7.8.1 Verify each ASW manual and power operated, In accordance with the valve in the flow path servicing safety related Surveillance equipment, that is not locked, sealed, or otherwise Frequency Control secured in position, is in the correct position. Program SR 3.7.8.2 Verify each ASW power operated valve in the flow In accordance with the path that is not locked, sealed, or otherwise lnservice Test secured in position, can be moved to the correct Program.

position.

SR 3.7.8.3 Verify each ASW pump starts automatically on an In accordance with the actual or simulated actuation signal. Surveillance Frequency Control Program DIABLO CANYON - UNITS 1 & 2 3.7-16a Unit 1 -Amendment No. J-9, 2-00, ~~

Unit 2 -Amendment No. J-9, ~~ ~~

AC Sources - Operating 3.8.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. Two required offsite circuits C. 1 Declare required 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months from inoperable. feature(s) inoperable discovery of Condition when its redundant C concurrent with required feature(s) is inoperability of inoperable. redundant required features.

AND C.2 Restore one required 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months offsite circuit to OPERABLE status. OR In accordance with the Risk Informed Completion Time Program D. One required offsite circuit D.1 Restore required offsite 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months inoperable. circuit to OPERABLE status. OR In accordance with the Risk Informed Completion Time Program AND OR One DG inoperable. D.2 Restore DG to 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months OPERABLE status.

OR In accordance with the Risk Informed Completion Time Program E. Two or more DGs E.1 Ensure at least two DGs 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months inoperable. are OPERABLE.

OR In accordance with the Risk Informed Completion Time Program (continued)

DIABLO CANYON - UNITS 1 & 2 3.8-3 Unit 1 -Amendment No. ~' ~'

Unit 2 -Amendment No. ~' 2-24,

AC Sources - Operating 3.8.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME F. One supply train of the F.1 Restore the DFO 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months DFO transfer system transfer system to inoperable. OPERABLE status. OR In accordance with the Risk Informed Completion Time Program G. Two supply trains of the G. 1 Restore one train of the 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months DFO transfer system DFO transfer system to inoperable. OPERABLE status. OR In accordance with the Risk Informed Completion Time Program H. Required Action and H.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition A, B, C, D, E, F or G not met. H.2 -----------N 0 T E-----------

LCO 3.0.4.a is not applicable when entering MODE 4.

Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months I. ------------ NOTE ----------- 1.1 Restore required AC 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Not applicable when offsite sources to OPERABLE circuit or second DG status. OR intentionally made In accordance with the inoperable.

Risk Informed

Completion Time Two or more DGs Program inoperable.

AND One or more required offsite circuits inoperable.

(continued)

DIABLO CANYON - UNITS 1 & 2 3.8-3a Unit 1 -Amendment No. ~' ~,

Unit 2 -Amendment No. ~' ~'

AC Sources - Operating 3.8.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME J. ------------ NOTE ----------- J.1 Restore required AC 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Not applicable when DG or sources to OPERABLE second offsite circuit status. OR intentionally made In accordance with the inoperable.

Risk Informed

Completion Time One or more DGs Program inoperable.

AND Two required offsite circuits inoperable.

K. Required Action and K.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition I or J not met. K.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months DIABLO CANYON - UNITS 1 & 2 3.8-3b Unit 1 -Amendment No. ~' 2:4-9, Unit 2 -Amendment No. ~' 224,

DC Sources - Operating 3.8.4 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B. One battery inoperable. B.1 Restore battery to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months OPERABLE status.

OR In accordance with the Risk Informed Completion Time Program C. One DC electrical power C. 1 Restore DC electrical 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months subsystem inoperable for power subsystem to .

reasons other than OPERABLE status. OR Condition A or B. In accordance with the Risk Informed Completion Time Program D. More than one full capacity D.1 Restore the DC 14 days charger receiving power electrical power simultaneously from a subsystem to a single 480 V vital bus. configuration wherein each charger is powered from its associated 480 volt vital bus.

(continued)

DIABLO CANYON - UNITS 1 & 2 3.8-18a Unit 1 -Amendment No. ~,-1-7-2-,4-9G, 2-4-9, Unit 2 -Amendment No. ~,-1-74 , ~ '

DC Sources - Operating 3.8.4 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME 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 of Condition A, B, C, AND or 0 not met.

E.2 -----------N0 T E-----------

LCO 3.0.4.a is not applicable when entering MODE 4.

Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months F. ------------ N0 TE ----------- F.1 Restore DC electrical 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Not applicable when power subsystems to second DC electrical power OPERABLE status. OR subsystem intentionally In accordance with the made inoperable. Risk Informed

Completion Time Two or more DC electrical Program power subsystems inoperable.

G. Required Action and G. 1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time of Condition F not AND met. G.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.4.1 Verify battery terminal voltage is greater than or In accordance with equal to the minimum established float voltage. the Surveillance Frequency Control Program (continued)

DIABLO CANYON - UNITS 1 & 2 3.8-19 Unit 1 -Amendment No. ~,--1--7-2,2:00,~,

Unit 2 -Amendment No. ~ , -i-7-4,~,2-24-,

DC Sources - Operating 3.8.4 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.4.2 Verify each battery charger supplies ~ 400 amps at In accordance with greater than or equal to the minimum established the Surveillance float voltage for ~ 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months . Frequency Control Program Verify each battery charger can recharge the battery to the fully charged state within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months while supplying the largest combined demands of the various continuous steady state loads, after a battery discharge to the bounding design basis event discharge state.

SR 3.8.4.3 -------------------------------NOTES-----------------------------

1. The modified. performance discharge test in SR 3.8.6.6 may be performed in lieu of SR 3.8.4.3.

2. This Surveillance shall not be performed in MODE 1, 2, 3, or4.

Verify battery capacity is adequate to supply, and In accordance with maintain in OPERABLE status, the required the Surveillance emergency loads for the design duty cycle when Frequency Control

subjected to a battery service test. Program DIABLO CANYON - UNITS 1 & 2 3.8-19a Unit 1 -Amendment No. Ja , ~,2-00, Unit 2 -Amendment No. Ja,4-74,2-G-i,

Inverters - Operating 3.8.7 3.8 ELECTRICAL POWER SYSTEMS 3.8.7 Inverters-Operating LCO 3.8. 7 Four Class 1E Vital 120 V UPS inverters shall be OPERABLE.

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

ACTIONS -

CONDITION REQUIRED ACTION COMPLETION TIME A. One required inverter A. 1 -----------NOTE---------------

inoperable. Enter applicable Conditions and Required Actions of LCO 3.8.9, "Distribution Systems -

Operating" with any vital 120 V AC bus de-energized.

Restore inverter to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months OPERABLE status.

OR In accordance with the Risk Informed Completion Time Program B. Required Action and B.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time of Condition A not AND met.

B.2 -----------N0 T E-----------

LCO 3.0.4.a is not applicable when entering MODE 4.

Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months (continued)

DIABLO CANYON - UNITS 1 & 2 3.8-26 Unit 1 -Amendment No. --1-Ja, ~, ~'

Unit 2 -Amendment No. --1-Ja, ~' ~,

Inverters - Operating 3.8.7 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. ------------ NOTE ----------- C.1. Restore inverters to 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Not applicable when two or OPERABLE status.

more required inverters OR intentionally made In accordance with the inoperable. Risk Informed

Completion Time Two or more required Program inverters inoperable.

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

D.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.7.1 Verify correct inverter voltage and alignment to In accordance with the required AC vital buses. Surveillance Frequency Control Program DIABLO CANYON - UNITS 1 & 2 3.8-26a Unit 1 -Amendment No. --1-J-5, ~'

Unit 2 -Amendment No. --1-J-5, 2-G4-,

Distribution Systems - Operating 3.8.9 3.8 ELECTRICAL 'POWER SYSTEMS 3.8.9 Distribution Systems-Operating LCO 3.8.9 The required Class 1E AC, DC, and 120 VAC vital bus electrical power distribution subsystems shall be OPERABLE.

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

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One AC electrical power A. 1 Restore AC electrical 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months distribution subsystem power distribution inoperable. subsystem to OR OPERABLE status.

In accordance with the Risk Informed Completion Time Program B. One 120 VAC vital bus B.1 Restore 120 VAC vital 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months subsystem inoperable. bus subsystem to OPERABLE status. OR In accordance with the Risk Informed Completion Time Program C. One DC electrical power C.1 Restore DC electrical 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months distribution subsystem power distribution inoperable. subsystem to OR OPERABLE status.

In accordance with the Risk Informed Completion Time Program (continued)

DIABLO CANYON - UNITS 1 & 2 3.8-29 Unit 1 -Amendment No. ~' ~, 2-4--9, Unit 2 -Amendment No. ~' :24-7, 22-i,

Distribution Systems - Operating 3.8.9 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME D. Required Action and D.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time of Condition A, B, or AND C not met.

t D.2 -----------N0 T E-----------

LCO 3.0.4.a is not applicable when entering MODE 4.

Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months E. ------------ N0 T E ----------- E.1. Restore electrical power 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Not applicable when two or distribution subsystems to more electrical power OPERABLE status. OR distribution subsystems In accordance with the intentionally made Risk Informed inoperable. Completion Time

Program Two or more electrical power distribution subsystems inoperable.

F. Required Action and F.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time of Condition E not AND met. F.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.8.9.1 Verify correct breaker alignments and voltage to In accordance with required AC, DC, and 120 VAC vital bus electrical the Surveillance power distribution subsystems. Frequency Control Program DIABLO CANYON - UNITS 1 & 2 3.8-30 Unit 1 -Amendment No. ~~ 200, Unit 2 -Amendment No. ~~ 2-G-4-,

Programs and Manuals 5.5 5.5 Programs and Manuals (continued) 5.5.20 Risk Informed Completion Time Program This program provides controls to calculate a Risk Informed Completion Time (RICT) and must be implemented in accordance with NEI 06-09, Revision 0-A, .. Risk-Managed Technical Specifications (RMTS) Guidelines. The program shall include the following:

a. The RICT may not exceed 30 days;

b. A RICT may only be utilized in MODE 1 AND 2.

c. When a RICT is being used, any plant configuration change within the scope of the Risk Informed Completion Time Program must be considered for the effect on the RICT.

1. For planned changes, the revised RICT must be determined prior to implementation of the change in configuration.

2. For emergent conditions, the revised RICT must be determined within the time limits of the Required Action Completion Time (i.e., not the RICT) or 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months after the plant configuration change, whichever is less.

3. Revising the RICT is not required if the plant configuration change would lower plant risk and would result in a longer RICT.

d. Use of a RICT is not permitted for voluntary entry into a configuration which represents a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE.

e. Use of a RICT, not to exceed 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , is permitted for emergent conditions which represent a loss of a specified safety function or inoperability of all required trains of a system required to be OPERABLE if one or more of the trains are considered .. PRA functional .. as defined in Section 2.3.1 of NEI 06-09.

DIABLO CANYON - UNITS 1 & 2 5.0-17b Unit 1 -Amendment No.

Unit 2 -Amendment No.

Enclosure Attachment 3 PG&E Letter DCL-16-104 Technical Specification Bases Changes (For information only)

Containment Spray and Cooling Systems B 3.6.6 BASES ACTIONS E.1 and E.2 (continued)

Required Action E.2 is modified by a Note that states that LCO 3.0.4.a is not applicable when entering MODE 4. This Note prohibits the use of LCO 3.0.4.a to enter MODE 4 during startup with the LCO not met.

However, there is no restriction on the use of LCO 3.0.4.b, if applicable, because LCO 3.0.4.b requires performance of a risk assessment addressing inoperable systems and components, consideration of the results, determination of the acceptability of entering MODE 4, and establishment of risk management actions, if appropriate. LCO 3.0.4 is not applicable to, and the Note does not preclude, 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 the unit.

The allowed Completion Times are reasonable, based on operating experience, to reach the required plant conditions from full power INSERT B- hconditions in an orderly manner and without challenging plant systems.

30 F.1

'Nith t\vo containment spray trains or one containment spray train inoperable and t\vo CFCU systems inoperable such that one or less CFCUs remain OPERABLE or one or less CFCUs are OPERABLE, the unit is in a condition outside the accident analysis. Therefore, LCO 3.0.3 must be entered immediately.

(continued)

DIABLO CANYON - UNITS 1 & 2

CCW System B 3.7.7

BASES ACTIONS B.1 and B.2 (continued) If the PG&E Design Class I CCW loop cannot be restored to OPERABLE status within the associated Completion Time, the unit must be placed in a MODE in which overall plant risk is reduced. To achieve this status, the unit must be placed in at least MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in MODE 4 within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months .

Remaining within the Applicability of the LCO is acceptable to accomplish short duration repairs to restore inoperable equipment because the plant risk in MODE 4 is similar to or lower than MODE 5 (Ref. 4). In MODE 4 the Steam Generators and Residual Heat Removal System are available to remove decay heat, which provides diversity and defense in depth. As stated in Reference 4, the steam turbine driven Auxiliary Feedwater Pump must be available to remain in MODE 4. Should Steam Generator cooling be lost while relying on this Required Action, there are preplanned actions to ensure long-term decay heat removal. Voluntary entry into MODE 5 may be made as it is also acceptable from a risk perspective.

Required Action B.2 is modified by a Note that states that LCO 3.0.4.a is not applicable when entering MODE 4. This Note prohibits the use of LCO 3.0.4.a to enter MODE 4 during startup with the LCO not met.

However, there is no restriction on the use of LCO 3.0.4.b, if applicable, because LCO 3.0.4.b requires performance of a risk assessment addressing inoperable systems and components, consideration of the results, determination of the acceptability of entering MODE 4, and establishment of risk management actions, if appropriate. LCO 3.0.4 is not applicable to, and the Note does not preclude, 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 the unit.

The allowed Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full power conditions in an orderly manner and without challenging unit systems.

(continued)

DIABLO CANYON - UNITS 1 & 2

ASW B 3.7.8 BASES ACTIONS B.1 and B.2 (continued)

(continued)

The allowed Completion Times are reasonable, based on operating INSERT B-34 I experience, to reach the required unit conditions from full power c; conditions in an orderly manner and without challenging unit systems.

SURVEILLANCE SR 3.7.8.1 REQUIREMENTS Verifying the correct alignment for manual and power operated valves in the ASW system flow path provides assurance that the proper flow paths exist for ASW system operation. The ASW system flow path consists of the direct flow path servicing the PG&E Design Class I equipment (e.g., CCW heat exchanger) and portions of any branch line flow path off the direct flow path that a valve misposition could result in degradation of the system safety function. This SR does not apply to valves that are locked, sealed, or otherwise secured in position, since they are verified to be in the correct position prior to being locked, sealed, or secured. This SR also does not apply to valves which are closed and secured by a cap or blind flange (e.g., manual test, vent, and drain valves), to valves that cannot be inadvertently misaligned (e.g., check valves), or to valves in instrument or sample lines. This SR does not require any testing or valve manipulation; rather, it involves verification that those valves capable of being mispositioned are in the correct position . This SR does not apply to valves that cannot be inadvertently misaligned, such as check valves.

The Surveillance Frequency is based on operating experience, equipment reliability, and plant risk and is controlled under the Surveillance Frequency Control Program.

(continued)

DIABLO CANYON - UNITS 1 & 2

AC Sources - Operating B 3.8.1 BASES ACTIONS G.1 (continued) be less than that associated with an immediate controlled shutdown (the immediate shutdown could cause grid instability, which could result in a total loss of AC power). Since any inadvertent generator trip could also result in a total loss of offsite AC power, the time allowed for INSERT B-2

eration is severely restricted. The intent here is to avoid the risk associated w1 *

ontrolled shutdown and to

minimize the risk associated with this level of H.1 and H.2 If the inoperable AC electric power sources cannot be restored to OPERABLE status within the required Completion Time, the unit must be brought to a MODE in which overall plant risk is reduced. To achieve this status, the unit must be brought to at least MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and to MODE 4 within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months .

Remaining within the Applicability of the LCO is acceptable to accomplish short duration repairs to restore inoperable equipment because the plant risk in MODE 4 is similar to or lower than MODE 5 (Ref. 26). In MODE 4 the Steam Generators and Residual Heat

Removal System are available to remove decay heat, which provides diversity and defense in depth. As stated in Reference 26, the steam turbine driven Auxiliary Feedwater Pump must be available to. remain in MODE 4. Should Steam Generator cooling be lost while relying on this Required Action, there are preplanned actions to ensure long-term decay heat removal. Voluntary entry into MODE 5 may be made as it is also acceptable from a risk perspective.

Required Action H.2 is modified by a Note that states that LCO 3.0.4.a is not applicable when entering MODE 4. This Note prohibits the use of LCO 3.0.4.a to enter MODE 4 during startup with the LCO not met.

However, there is no restriction on the use ofLCO 3.0.4.b, if applicable, because LCO 3.0.4.b requires performance of a risk assessment addressing inoperable systems and components, consideration of the results , determination of the acceptability of entering MODE 4, and establishment of risk management actions, if appropriate. LCO 3.0.4 is not applicable to, and the Note does not preclude, 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 the unit.

The allowed Completion Times are reasonable, based on operating INSERT B-35 experience, to reach the required unit conditions from full power conditions in* an orderly manner and without challenging plant systems.

'----------+~ (continued)

DIABLO CANYON - UNITS 1 & 2

DC Sources- Operating B 3.8.4 BASES ACTIONS E.1 and E.2 (continued)

If the inoperable DC electrical power subsystem cannot be restored to OPERABLE status within the required Completion Time, the unit must be brought to a MODE in which overall plant risk is reduced . To achieve this status, the unit must be brought to at least MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and to MODE 4 within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months .

Remaining within the Applicability of the LCO is acceptable to accomplish short duration repairs to restore inoperable equipment because the plant risk in MODE 4 is similar to or lower than MODE 5 (Ref. 12). In MODE 4 the Steam Generators and Residual Heat Removal System are available to remove decay heat, which provides diversity and defense in depth. As stated in Reference 12, the steam turbine driven Auxiliary Feedwater Pump must be available to remain in MODE 4. Should Steam Generator cooling be lost while relying on this Required Action, there are preplanned actions to ensure long-term decay heat removal. Voluntary entry into MODE 5 may be made as it is also acceptable from a risk perspective.

Required Action E.2 is modified by a Note that states that LCO 3.0.4.a is not applicable when entering MODE 4. This Note prohibits the use of LCO 3.0.4.a to enter MODE 4 during startup with the LCO not met.

However, there is no restriction on the use of LCO 3.0.4.b, if applicable, because LCO 3.0.4.b requires performance of a risk assessment addressing inoperable systems and components, consideration of the results, determination of the acceptability of entering MODE 4, and establishment of risk management actions, if appropriate. LCO 3.0.4 is not applicable to, and the Note does not preclude, 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 the unit.

INSERT B-36 The allowed Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full power

.,. conditions in an orderly manner and without challenging plant systems .

(continued)

DIABLO CANYON - UNITS 1 & 2

Inverters- Operating B 3.8.7 BASES ACTIONS A.1 (continued)

AC electrical power sources (offsite and onsite). The uninterruptible inverter source to the 120-Vac Class 1E buses is the preferred source for powering instrumentation trip setpoint devices.

B.1 and B.2 If the inoperable devices or components cannot be restored to OPERABLE status within the required Completion Time, the unit must be brought to a MODE in which overall plant risk is reduced. To achieve this status, the unit must be brought to at least MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and to MODE 4 within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months .

Remaining within the Applicability of the LCO is acceptable to accomplish short duration repairs to restore inoperable equipment because the plant risk in MODE 4 is similar to or lower than MODE 5 (Ref. 4). In MODE 4 the Steam Generators and Residual Heat Removal System are available to remove decay heat, which provides diversity and defense in depth. As stated in Reference 4, the steam turbine driven Auxiliary Feedwater Pump must be available to remain in MODE 4. Should Steam Generator cooling be lost while relying on this Required Action, there are preplanned actions to ensure long-term decay heat removal. Voluntary entry into MODE 5 may be made as it is also acceptable from a risk perspective.

Required Action B.2 is modified by a Note that states that LCO 3.0.4.a is not applicable when entering MODE 4. This Note prohibits the use of LCO 3.0.4.a to enter MODE 4 during startup with the LCO not met.

However, there is no restriction on the use of LCO 3.0.4.b, if applicable, because LCO 3.0.4.b requires performance of a risk assessment addressing inoperable systems and components, consideration of the results, determination of the acceptability of entering MODE 4, and establishment of risk management actions, if appropriate. LCO 3.0.4 is not applicable to, and the Note does not preclude, 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 the unit.

INSERT B-37 The allowed Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full power conditions in an orderly manner and without challenging plant systems .

(continued)

DIABLO CANYON- UNITS 1 & 2

Distribution Systems- Operating B 3.8.9 BASES ACTIONS (continued)

Condition E corresponds to tv.to required Class 1E AC, DC, or 120 Vac INSERT B- buses with inoperable distribution subsystems that result in a loss of 40

~.___ _ _ _ ___J_ safety function, adequate core cooling, containment OPERABILITY and other PG&E Design Class I functions for DBA mitigation v1ould be compromised, and immediate plant shutdown in accordance with LCO 3.0.3 is required.

SURVEILLANCE SR 3.8.9.1 REQUIREMENTS This Surveillance verifies that the required Class 1E AC, DC, and 120-Vac bus electrical power distribution systems are functioning properly, with the correct circuit breaker alignment. The correct breaker .

alignment ensures the appropriate separation and independence of the electrical divisions is maintained, and the appropriate voltage is available to each required bus. The verification of proper voltage availability on the buses ensures that the required voltage is readily available for motive as well as control functions for critical system loads connected to these buses. The Surveillance Frequency is based on operating experience, equipment reliability, and plant risk and is contmlled under the Surveillance Frequency Control Program.

Table B 3.8.9-1 The table on the next page defines the general features of the AC and DC Electrical Power Distribution System.

REFERENCES 1. UFSAR, Chapter 6 . .

2. UFSAR, Chapter 15.

3. NUREG-1151, .. Technical Specifications Diablo Canyon Nuclear Power Plant, Units 1 and 2, .. August 1985. (TS Bases 3/4.8.1, 3/4.8.2, 3/4.8.3).

4. WCAP-16294-NP-A, Rev. 1, .. Risk-Informed Evaluation of Changes to Technical Specification Required Action Endstates for Westinghouse NSSS PWRs, .. June 2010.

DIABLO CANYON - UNITS 1 & 2

jNote this INSERT is unchanged from DCL-13-1 06.

INSERT B-2 Alternately, a Completion Time can be determined in accordance with the Risk Informed Completion Time Program.

INSERT B-26 With two or more channels inoperable the Required Action is to restore sufficient inoperable channels to OPERABLE status to reduce total inoperable channels to one within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months . The 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Completion Time is acceptable because it minimizes risk while allowing time for restoration of sufficient channels. Alternately, a Completion Time can be determined in accordance with the Risk Informed Completion Time Program.

The Condition is modified by a Note stating it is not applicable when two or more channels are intentionally made inoperable. The Required Action is not intended for voluntary removal of redundant systems or components from service. The Required Action is only applicable if one channel is inoperable for any reason and the additional channels are found to be inoperable, or if two or more channels are found to be inoperable at the same time.

BB.1 and BB.2 If the Required Action and associated Completion Time of Condition C, E, S, T, X, Y, Z, or AA is not met, the unit must be placed in MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and MODE 5 within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months . The allowed Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full power conditions in an orderly manner and without challenging unit systems. In MODE 5, these Functions are no longer required OPERABLE.

CC.1 and CC.2 If the Required Action and associated Completion Time of Condition B, D, F, G, H, I, J, K, L, U, or V is not met, the unit must be placed in MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and MODE 4 within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months .

The allowed Completion Times are reasonable , based on operating experience, to reach the required unit conditions from full power conditions in an orderly manner and without challenging unit systems. In MODE 4, these Functions are either no longer required OPERABLE, or remaining within the Applicability of the LCO is acceptable to accomplish short duration repairs to restore inoperable equipment because the plant risk in MODE 4 is similar to or lower than MODE 5 (Ref. 20).

In MODE 4 the Steam Generators and Residual Heat Removal System are available to remove decay heat, which provides diversity and defense in depth . As stated in Reference 20, the steam turbine driven Auxiliary Feedwater Pump must be available to remain in MODE 4.

Should Steam Generator cooling be lost while relying on this Required Action, there are preplanned actions to ensure long-term decay heat removal. Voluntary entry into MODE 5 may be made as it is also acceptable from a risk perspective.

Required Action CC.2 is modified by a Note that states that LCO 3.0.4.a is not applicable when entering MODE 4. This Note prohibits the use of LCO 3.0.4.a to enter MODE 4 during startup with the LCO not met. However, there is no restriction on the use of LCO 3.0.4.b, if applicable, because LCO 3.0.4.b requires performance of a risk assessment addressing inoperable systems and components, consideration of the results, determination of the acceptability of

entering MODE 4, and establishment of risk management actions, if appropriate. LCO 3.0.4 is not applicable to, and the Note does not preclude, 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 the unit.

If the Required Action and associated Completion Time of Condition M, N, Q, orR is not met, the unit must be placed in MODE 3 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 reasonable, based on operating experience, to reach MODE 3 from full power conditions in an orderly manner and without challenging unit systems. In MODE 3, these Functions are no longer required OPERABLE.

If the Required Action and associated Completion Time of Condition 0 or P is not met, the unit must be placed in MODE 2 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 reasonable, based on operating experience, to reach MODE 2 from full power conditions in an orderly manner and without challenging unit systems. In MODE 2, these Functions are no longer required OPERABLE.

INSERT B-30 With two containment spray trains inoperable, or one containment spray train inoperable and the CFCU System inoperable such that one or less CFCUs remain OPERABLE, or one or less CFCUs are OPERABLE, sufficient containment spray trains and/or CFCUs must be restored to OPERABLE status so that no more than one containment spray train is inoperable and two CFCUs are OPERABLE within one hour or in accordance with the Risk Informed Completion Time Program. The allowed Completion Time provides a short time to restore the trains to OPERABLE, before proceeding with a plant shutdown required by Condition G.

The Condition is modified by a Note stating it is not applicable when two containment spray trains or four CFCUs are intentionally made inoperable. This Required Action is not intended for voluntary removal of redundant systems or components from service. The Required Action is only applicable if one containment spray train or a combination of one containment spray train and CFCUs are inoperable for any reason and a second containment spray train or additional CFCUs are found to be inoperable at the same time.

G.1 and G.2 If the Required Action and associated Completion Time of Condition F of this LCO is not met, the plant must be brought to a MODE in which the LCO does not apply. To achieve this status, the plant must be brought to at least MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and to MODE 5 within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months .

The allowed Completion Times are reasonable, based on operating experience, to reach the required plant conditions from full power conditions in an orderly manner and without challenging plant systems.

INSERT B-33 With two PG&E Design Class I CCW loops inoperable the Required Action is to restore the inoperable the PG&E Design Class I CCW loops to OPERABLE status within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months to regain a heat sink for safety related components. The 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Completion Time is acceptable because it minimizes risk while allowing time for restoration of at least one vital CCW loop. Alternately, a Completion Time can be determined in accordance with the Risk Informed Completion Time Program.

The Condition is modified by a Note stating it is not applicable when the second vital CCW loop is intentionally made inoperable. This Required Action is not intended for voluntary removal of redundant systems or components from service. The Required Action is only applicable if one vital CCW loop is inoperable for any reason and a second vital CCW loop is found to be inoperable, or if two vital CCW loops are found to be inoperable at the same time.

D.1 and D.2 If the PG&E Design Class I CCW loops cannot be restored to OPERABLE status within the associated Completion Time, the unit must be placed in a MODE in which the LCO does not apply. To achieve this status, the unit must be placed in at least MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in MODE 5 within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months . The allowed Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full power conditions in an orderly manner and without challenging unit systems.

INSERT B-34 With two ASW trains inoperable, the Required Action is to restore the inoperable ASW trains to OPERABLE status within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months to regain a heat sink for safety related components. The 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Completion Time is acceptable because it minimizes risk while allowing time for restoration of at least one train. Alternately, a Completion Time can be determined in accordance with the Risk Informed Completion Time Program . .

The Condition is modified by a Note stating it is not applicable when the second ASW train is intentionally made inoperable. This Required Action is not intended for voluntary removal of redundant systems or components from service. The Required Action is only applicable if one ASW train is inoperable for any reason and a second ASW train is found to be inoperable, or if two ASW trains are found to be inoperable at the same time.

D.1 and D.2 If the ASW trains cannot be restored to OPERABLE status within the associated Completion Time, the unit must be placed in a MODE in which the LCO does not apply. To achieve this status, the unit must be placed in at least MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in MODE 5 within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months . The allowed Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full power conditions in an orderly manner and without challenging unit systems.

INSERT B-35 11 With two or more DGs and one or more required offsite circuits inoperable, the Required Action is to restore enough of the required inoperable AC sources to OPERABLE status within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months to regain some level of redundancy in the AC electrical power supplies. The 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Completion Time is acceptable because it minimizes risk while allowing time for restoration of sufficient AC electrical power supplies. Alternately, a Completion Time can be determined in accordance with the Risk Informed Completion Time Program.

The Condition is modified by a Note stating it is not applicable when an offsite circuit or second DG is intentionally made inoperable. This Required Action is not intended for voluntary removal of redundant systems or components from service. The Required Action is only applicable if one required offsite circuit and DG are inoperable for any reason and additional DGs are found to be inoperable, or if two DGs are inoperable and one or more required offsite circuits are found to be inoperable at the same time.

With two or more required offsite circuits and one or more DGs inoperable, the Required Action is to restore enough of the required inoperable AC sources to OPERABLE status within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months to regain some level of redundancy in the AC electrical power supplies. The 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Completion Time is acceptable because it minimizes risk while allowing time for restoration of sufficient AC electrical power supplies. Alternately, a Completion Time can be determined in accordance with the Risk Informed Completion Time Program.

The Condition is modified by a Note stating it is not applicable when a DG or second offsite circuit is intentionally made inoperable. This Required Action is not intended for voluntary removal of redundant systems or components from service. The Required Action is only applicable if one required offsite circuit and DG are inoperable for any reason and additional offsite circuits are found to be inoperable, or if two required offsite circuits are inoperable and one or more DGs are found to be inoperable at the same time.

K.1 and K.2 If the inoperable AC electric power sources cannot be restored to OPERABLE status within the required Completion Time, the unit must be brought to a MODE in which the LCO does not apply. To achieve this status, the unit must be brought to at least MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and to MODE 5 within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months . The allowed Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full power conditions in an orderly manner and without challenging plant systems.

INSERT 8-36 E..1 With two or more DC electrical power subsystems inoperable, the Required Action is to restore sufficient DC electrical power subsystems to OPERABLE status within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months to regain control power for the AC emergency power system. The 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Completion Time is acceptable because it minimizes risk while allowing time for restoration of at least one DC electrical power subsystem. Alternately, a Completion Time can be determined in accordance with the Risk Informed Completion Time Program .

The Condition is modified by a Note stating it is not applicable when the second DC electrical power subsystem is intentionally made inoperable. This Required Action is not intended for voluntary removal of redundant systems or components from service. The Required Action is only applicable if one DC electrical power subsystem is inoperable for any reason and a second DC electrical power subsystem is found to be inoperable, or if two DC electrical power subsystem are found to be inoperable at the same time.

G.1 and G.2 If the inoperable DC electrical power subsystems cannot be restored to OPERABLE status within the required Completion Time, the unit must be brought to a MODE in which the LCO does not apply. To achieve this status, the unit must be brought to at least MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and to MODE 5 within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months . The allowed Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full power conditions in an orderly manner and without challenging plant systems. The Completion Time to bring the unit to

.MODE 5 is consistent with the time required in Regulatory Guide 1.93 (Ref. 7).

INSERT B-37 With two or more required inverters inoperable the Required Action is to restore sufficient inverters to OPERABLE status within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months to regain AC electrical power to the vital buses.

The 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Completion Time is acceptable because it minimizes risk while allowing time for restoration of at least one [required] inverter. Alternately, a Completion Time can be determined in accordance with the Risk Informed Completion Time Program.

The Condition is modified by a Note stating it is not applicable when two or more required inverters are intentionally made inoperable. This Required Action is not intended for voluntary removal of redundant systems or components from service. The Required Action is only applicable if one required inverter is inoperable for any reason and additional required inverters are found to be inoperable, or if two or more required inverters are found to be inoperable at the same time.

D.1 and D.2 If the inoperable devices or components cannot be restored to OPERABLE status within the required Completion Time, the unit must be brought to a MODE in which the LCO does not apply. To achieve this status, the unit must be brought to at least MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and to MODE 5 within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months . The allowed Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full power conditions in an orderly manner and without challenging plant systems.

INSERT B-40 With two or more electrical power distribution subsystems inoperable that result in a loss of safety function, the Required Action is to restore sufficient electrical power distribution subsystems within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months to restore safety function. The 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months Completion Time is acceptable because it minimizes risk while allowing time for restoration of sufficient electrical power distribution subsystems. Alternately, a Completion Time can be determined in accordance with the Risk Informed Completion Time Program.

The Condition is modified by a Note stating it is not applicable when two or more required inverters are intentionally made inoperable. This Required Action is not intended for voluntary removal of redundant systems or components from service. The Required Action is only applicable if one electrical power distribution subsystem is inoperable for any reason and a second electrical power distribution subsystem is found to be inoperable, or if two or more electrical power distribution subsystems are found to be inoperable at the same time.

F.1 and F.2 If the inoperable distribution subsystem(s) cannot be restored to OPERABLE status within the required Completion Time, the unit must be brought to a MODE in which the LCO does not apply. To achieve this status, the unit must be brought to at least MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and to MODE 5 within 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months . The allowed Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full power conditions in an orderly manner and without challenging plant systems.

Enclosure Attachment 4 PG&E Letter DCL-1 04 Revision to Regulatory Commitments The regulatory commitment contained in Attachment 4 of the Enclosure of PG&E Letter DCL-15-007, Response to NRC RAI on License Amendment Request (LAR) 13-02, Revision to Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 1, "Provide Risk-Informed Extended Completion Times -

RITSTF Initiative 48," dated February 5, 2015, is listed below. The commitment contained administrative controls that would be taken at a time beyond 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months . The DCL-15-007 commitment needs to be revised to remove the administrative controls (Plant Manager approval and NRC resident inspector notification) that would be performed beyond 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months because they are no longer required due to the change to TS Section 5 proposed in this letter that limits the use of a RICT to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months for an emergent condition where Probabilistic Risk Assessment (PRA) functionality exists.

Therefore, the DCL-15-007 commitment is revised below to reflect the changes made to Technical Specification (TS) Section 5 in this letter.

Original DCL-15-007 commitment The plant-specific procedure implementing the RICT Program will specifically address situations where TS 5.5.20.e is utilized for an emergent condition that PRA functionality exists but neither train by itself is PRA functional. The following administrative controls will be established to assure limited plant operation, management authorization, and NRC awareness:

The RICT Program should not be used to extend operation to the limit of 30 days specified by TS 5.5.20.a when all safety trains are inoperable, and restoration of the Limiting Condition of Operation (LCO) cannot be accomplished by maintaining PRA Functionality in at least one train as required by TS 5.5.20.e.

In the event of such a configuration, the RICT may be used to provide additional time only for the purpose of preparing for an orderly plant shutdown considering the status of plant equipment required to implement and maintain shutdown conditions, including consideration of external plant conditions potentially affecting safe unit operations during transition and shutdown modes.

The Plant Manager shall approve within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months continued operation using a RICT in this configuration.

The NRC resident inspector shall be notified within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months of continued operation using a RICT in this configuration.

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Enclosure Attachment 4 PG&E Letter DCL-1 04 Revised commitment The plant-specific procedure implementing the RICT Program will specifically address situations where TS 5.5.20.e is utilized for an emergent condition that PRA functionality exists but neither train by itself is PRA functional. The following administrative control will be established to assure limited plant operation:

In the event of such a configuration, the RICT may be used to provide additional time only for the purpose of preparing for an orderly plant shutdown considering the status of plant equipment required to implement and maintain shutdown conditions, including consideration of external plant conditions potentially affecting safe unit operations during transition and shutdown modes.

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DCL-16-104, Technical Specification Changes for License Amendment Request 13-02, Revision to Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 1....

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DCL-16-104, Technical Specification Changes for License Amendment Request 13-02, Revision to Technical Specifications to Adopt Risk Informed Completion Times TSTF-505, Revision 1....

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