Text

Application for Amendment to Facility Operating License No. NPF-30, Adoption of Industry Travelers TSTF-247-A and TSTF-352-A
	ML073460060
Person / Time
Site:	Callaway
Issue date:	11/29/2007
From:	Graessle L; AmerenUE, Union Electric Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	ULNRC-05459
	Download: ML073460060 (53)
	v • d • e

AmerenUE P0 Box 620 Cal/away Plant Fulton, MO 65251 November 29, 2007 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Stop P1-137 Washington, DC 20555-0001 ULNRC-05459 Ladies and Gentlemen:

DOCKET NUMBER 50-483 CALLAWAY PLANT UNION ELECTRIC CO.

APPLICATION FOR AMENDMENT TO ME FACILITY OPERATING LICENSE NPF-30 ADOPTION OF INDUSTRY TRAVELERS TSTF-247-A AND TSTF-352-A AmerenUE herewith transmits an application for amendment to Facility Operating License Number NPF-30 for the Callaway Plant.

The proposed changes adopt NRC-approved travelers TSTF-247-A and TSTF-352-A. These changes will extend the Completion Times for default Conditions in TS 3.4.10 (Required Action B.2) and TS 3.4.12 (Required Action G. 1) and allow separate Condition entry for PORV block valves in TS 3.4.11.

The proposed change to TS 3.4.10, "Pressurizer Safety Valves," will revise the Completion Time of Required Action B.2 to be in MODE 4 below the COMS arming temperature (275°F) from 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months in accordance with NRC-approved TSTF-352-A.

The proposed changes to TS 3.4.11, "Pressurizer PORVs," will revise the ACTIONS Note to allow separate Condition entry for each pressurizer PORV block valve. In addition, Required Action F. 1 in TS 3.4.11 to place associated PORVs in manual control in the case of more than one inoperable block valve would be deleted since it is redundant and repetitive to Required Action C. I with separate Condition entry considered for the block valves. These changes are in accordance with NRC-approved TSTF-247-A.

The proposed change to TS 3.4.12, "Cold Overpressure Mitigation System (COMS)," will revise the Completion Time of Required Action G. 1 to depressurize and vent the RCS from 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months to 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months in accordance with NRC-approved TSTF-352-A.

AODC a subsidiary of lmeren Corporation

.. -. .* ., .... . .....:* . *,* i , . * * : : f, : :. * , . . . . .

ULNRC-05459 November 29, 2007 Page 2 Attachments 1 through 5 provide the Evaluation, Markup of Technical Specifications, Retyped Technical Specifications, Proposed Technical Specification Bases changes, and copies of TSTF-247-A and TSTF-352-A, respectively, in support of this amendment request. Attachments 4 and 5 are provided for information only.

Final Bases changes will be processed under our program for updates per TS 5.5.14, "Technical Specifications Bases Control Program," at the time this amendment is implemented. No other commitments are contained in this amendment application.

It has been determined that this amendment application does not involve a significant hazard consideration as determined per 10 CFR 50.92. Pursuant to 10 CFR 51.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the issuance of this amendment.

The Callaway Onsite Review Committee and a subcommittee of the Nuclear Safety Review Board have reviewed and approved the attached licensing evaluations and have approved the submittal of this amendment application.

AmerenUE requests approval of this LAR prior to September 1, 2008.

AmerenUE further requests that the license amendment be made effective upon NRC issuance, to be implemented within 90 days from the date of issuance.

In accordance with 10 CFR 50.91, a copy of this amendment application is being provided to the designated Missouri State official. If you have any questions on this amendment application, please contact me at (573) 676-8129, or Mr. Scott Maglio at (573) 676-8719.

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

Very truly yours, Executed on: f(- . -07 Luke H. Graessle Manager, Regulatory Affairs

ULNRC-05459 November 29, 2007 Page 3 GGY/nls Attachments 1 - Evaluation 2 - Markup of Technical Specifications 3 - Retyped Technical Specifications 4 - Proposed Technical Specification Bases Changes (for information only) 5 - Copies of Approved Travelers TSTF-247-A and TSTF-352-A

ULNRC-05459 November 29, 2007 Page 4 cc:

U.S. Nuclear Regulatory Commission (Original and 1 copy)

Attn: Document Control Desk Mail Stop P1-137 Washington, DC 20555-0001 Mr. Elmo E. Collins, Jr.

Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-4005 Senior Resident Inspector Callaway Resident Office U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman, MO 65077 Mr. Jack N. Donohew (2 copies)

Licensing Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop O-8B 1 Washington, DC 20555-2738

ULNRC-05459 November 29, 2007 Page 5 Index and send hardcopy to QA File A160.0761 Hardcopy:

Certrec Corporation 4200 South Hulen, Suite 422 Fort Worth, TX 76109 (Certrec receives ALL attachments as long as they are non-safeguards and public disclosed).

Electronic distribution for the following can be made via Tech Spec ULNRC Distribution:

C. D. Naslund A. C. Heflin L. H. Graessle G. A. Hughes S. A. Maglio S. L. Gallagher L. M. Belsky (NSRB)

T. B. Elwood G. G. Yates Ms. Diane M. Hooper Mr. Dennis Buschbaum Supervisor, Licensing TXU Power WCNOC Comanche Peak SES P.O. Box 411 P.O. Box 1002 Burlington, KS 66839 Glen Rose, TX 76043 Mr. Scott Bauer Mr. Stan Ketelsen Regulatory Affairs Manager, Regulatory Services Palo Verde NGS Pacific Gas & Electric P.O. Box 52034 Mail Stop 104/5/536 Mail Station 7636 P.O. Box 56 Phoenix, AZ 85072-2034 Avila Beach, CA 93424 Mr. Scott Head Mr. John O'Neill Supervisor, Licensing Pillsbury Winthrop Shaw Pittman LLP South Texas Project NOC 2300 N. Street N.W.

Mail Code N5014 Washington, DC 20037 P.O. Box 289 Wadsworth, TX 77483 Floyd Gilzow Deputy Director Missouri Public Service Department of Natural Resources Commission P.O. Box 176 Governor Office Building Jefferson City, MO 65102 200 Madison Street PO Box 360 Jefferson City, MO 65102-0360 Page 1 of 8 EVALUATION

1. DESCRIPTION Page 2

2. PROPOSED CHANGES Page 2

3. BACKGROUND Page 2

4. TECHNICAL ANALYSIS Page 3

5. REGULATORY SAFETY ANALYSIS Page 5 5.1 NO SIGNIFICANT HAZARDS CONSIDERATION Page 5 5.2 APPLICABLE REGULATORY REQUIREMENTS/CRITERIA Page 7

6. ENVIRONMENTAL CONSIDERATION Page 8

7.1 REFERENCES

Page 8 7.2 PRECEDENTS Page 8 Page 2 of 8 EVALUATION

1.0 DESCRIPTION

The proposed changes adopt NRC-approved travelers TSTF-247-A and TSTF-352-A.

These changes will extend the Completion Times for default Conditions in TS 3.4.10 (Required Action B.2) and TS 3.4.12 (Required Action G. 1) and allow separate Condition entry for PORV block valves in TS 3.4.11.

2.0 PROPOSED CHANGE

S The proposed change to TS 3.4.10, "Pressurizer Safety Valves," will revise the Completion Time of Required Action B.2 to be in MODE 4 below the COMS arming temperature (275°F) from 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months in accordance with NRC-approved TSTF-352-A.

The proposed changes to TS 3.4.11, "Pressurizer PORVs," will revise the ACTIONS Note to allow separate Condition entry for each pressurizer PORV block valve. In addition, Required Action F.1 in TS 3.4.11 to place associated PORVs in manual control in the case of more than one inoperable block valve would be deleted since it is redundant and repetitive to Required Action C. 1 with separate Condition entry considered for the block valves. These changes are in accordance with NRC-approved TSTF-247-A.

The proposed change to TS 3.4.12, "Cold Overpressure Mitigation System (COMS),"

will revise the Completion Time of Required Action G. 1 to depressurize and vent the RCS from 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months to 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months in accordance with NRC-approved TSTF-352-A. This change will allow 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months to depressurize and vent the RCS when the RCS temperature is less than the COMS arming temperature (LCO Applicability begins at this arming temperature of 275°F) and two required relief valves are inoperable OR the Required Action and associated Completion Times of Conditions A, B, D, E, or F are not met OR COMS is inoperable for any other reason than Conditions A through F.

3.0 BACKGROUND

The pressurizer safety valves provide, in conjunction with the Reactor Trip System, overpressure protection for the reactor coolant system (RCS). The pressurizer safety valves are designed to prevent the system pressure from exceeding the RCS Safety Limit (SL), 2735 psig, which is 110% of the design pressure.

Overpressure protection is required in MODES 1, 2, 3, 4, 5, and 6 with the reactor vessel head on. In MODE 4 with one or more RCS cold leg temperatures < 275'F, MODE 5 and MODE 6 with the reactor vessel head on, overpressure protection is provided by operating procedures and by meeting the requirements of TS 3.4.12.

Page 3 of 8 The pressurizer safety valves are part of the primary success path and mitigate the effects of postulated accidents. Operability of the safety valves ensures that the RCS pressure will be limited to 110% of design pressure.

The pressurizer is equipped with pressurizer safety valves and PORVs for pressure relief.

The PORVs are controlled to open when the pressurizer pressure increases and close when the pressurizer pressure decreases. The PORVs may also be manually operated from the control room. Block valves, which are normally open, are located between the pressurizer and the PORVs. The block valves are used to isolate the PORVs in case of excessive seat leakage or a stuck open PORV. Block valve closure is accomplished manually using controls in the control room. A stuck open PORV is, in effect, a small break loss of coolant accident (LOCA). As such, block valve closure terminates the RCS depressurization and coolant inventory loss.

The COMS controls RCS pressure at low temperatures so the integrity of the reactor coolant pressure boundary (RCPB) is not compromised by violating the pressure and temperature (P/T) limits of 10 CFR 50, Appendix G. The reactor vessel is the limiting RCPB component for demonstrating such protection. The reactor vessel material is less tough at low temperatures than at normal operating temperature. As the vessel neutron exposure accumulates, the material toughness decreases and becomes less resistant to pressure stress at low temperatures. RCS pressure, therefore, is maintained low at low temperatures and is increased only as temperature is increased. The potential for vessel overpressurization is most acute when the RCS is water solid, occurring only while shutdown; a pressure fluctuation can occur more quickly than an operator can react to relieve the condition. TS 3.4.12 provides RCS overpressure protection by having a minimum coolant input capability and having adequate pressure relief capacity.

The pressure relief capacity requires either two redundant RCS relief valves or a depressurized RCS and an RCS vent of sufficient size. One RCS relief valve or the open RCS vent is the overpressure protection device that acts to terminate an increasing pressure event.

The COMS for pressure relief consists of two PORVs with reduced lift settings, or two residual heat removal (RHR) suction relief valves, or one PORV and one RHR suction relief valve, or a depressurized RCS and an RCS vent of sufficient size.

4.0 TECHNICAL ANALYSIS

Changes to TS 3.4.10 and TS 3.4.12 The changes to the Completion Times of TS 3.4.10 Required Action B.2 and TS 3.4.12 Required Action G. 1 are taken from NRC-approved TSTF-352-A (see Attachment 5).

The STS allows 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months to transition from MODE 1 normal operating full power condition to MODE 4 (< 350°F) during a required shutdown. However, the above Required Actions direct entry into plant conditions below MODE 4; therefore, additional Page 4 of 8 time is requested to perform the actions in a safe and controlled manner. The requested Completion Times are taken from TSTF-352-A.

Required Action B.2 of TS 3.4.10 requires the plant to be in MODE 4 and cooled down below the COMS arming temperature (< 275°F) within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . Since the COMS arming temperature is below the MODE 4 entry temperature (350'F), additional time should be provided beyond the standard 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months allowed to reach MODE 4.

Required Action G.1 of TS 3.4.12 requires the plant to depressurize the RCS and establish a vent > 2.0 square inches within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months . The B&W STS NUREG-1430 allows 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months for this same Completion Time. The proposed change will extend the 8-hour Completion Time to 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . Eight hours is insufficient time to plan a MODE change, cool the plant following the plant cooldown rate limits, plan and execute the maintenance activity of opening a vent, and cool the RCS sufficiently to safely open a vent.

Depending on the plant status when Condition G is entered, a MODE reduction, with its associated pre-planning, may be required. A plant cooldown would also be required with cooldown limits that have to be met. The maintenance activity of venting the RCS must be planned and executed. The additional time (4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months ) added to the Completion Time will maintain plant safety by allowing the operators to plan the shutdown and prevent challenges to plant systems which may initiate an overpressure event which the shutdown intends to prevent. Further, it is unlikely that the current 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Completion Time can be met without water solid plant operation which is inherently riskier than maintaining a bubble in the pressurizer until a vent path can be established. The 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months allowed by NUREG-1430 is more appropriate.

Corresponding changes to the Bases have also been made. The above changes from TSTF-352-A, Revision 1, were approved by the NRC on April 13, 2000. Changes to NUREG-1431 STS 3.7.4 and STS 3.7.6 in TSTF-352-A are not applicable since the Callaway TSs don't rely on the steam generators for heat removal in MODE 4; those changes are not being adopted in this amendment application.

Changes to TS 3.4.11 The current ACTIONS Note in TS 3.4.11 allows separate condition entry for each PORV and the Conditions and Required Actions provide appropriate compensatory measures for separate Condition entry for each PORV. The Conditions and Required Actions in TS 3.4.11 also provide appropriate compensatory actions for separate Condition entry for each block valve. Therefore, the ACTIONS Note will be modified to allow separate condition entry for each block valve. This change is administrative in nature since the ACTIONS Note revision recognizes the existing LCO Conditions and Required Actions.

Corresponding changes to the Bases have also been made. This change is consistent with NRC-approved TSTF-247-A, Revision 0, as it applies to a plant like Callaway with two pressurizer PORVs and two pressurizer PORV block valves. The deletion of Required Action F. 1 removes an unnecessary, redundant requirement since separate Condition Page 5 of 8 entry for each block valve means that Required Action C. 1 would apply to each inoperable block valve at the time of Condition entry and would require its corresponding PORV be placed in manual control. The remaining changes to TS 3.4.11 Conditions C and F in TSTF-247-A apply to plants with 3 PORVs and 3 block valves. These changes do not apply to Callaway and are not adopted. NRC approved TSTF-247, Revision 0, on September 24, 1998.

5.0 REGULATORY SAFETY ANALYSIS This section addresses the standards of 10 CFR 50.92 as well as the applicable regulatory requirements and acceptance criteria.

The proposed changes adopt NRC-approved travelers TSTF-247-A and TSTF-352-A.

These changes will extend the Completion Times for default Conditions in TS 3.4.10 (Required Action B.2) and TS 3.4.12 (Required Action G. 1) and allow separate Condition entry for PORV block valves in TS 3.4.11.

5.1 No Significant Hazards Consideration (NSHC)

AmerenUE has evaluated whether or not a significant hazards consideration is involved with the proposed amendment by focusing on the three standards set forth in 10 CFR 50.92, "Issuance of amendment," Part 50.92(c), as discussed below:

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

Response: No Overall protection system performance will remain within the bounds of the previously performed accident analyses since there are no design changes. All design, material, and construction standards that were applicable prior to this amendment request will be maintained. There will be no changes to the design and operating temperature and pressure limits placed on the reactor coolant system.

The proposed changes will not adversely affect accident initiators or precursors nor alter the design assumptions, conditions, and configuration of the facility or the manner in which the plant is operated and maintained. The proposed changes will not alter or prevent the ability of structures, systems, and components (SSCs) from performing their intended functions to mitigate the consequences of an initiating event within the assumed acceptance limits.

The proposed changes do not physically alter safety-related systems nor affect the way in which safety-related systems perform their functions.

Page 6 of 8 All accident analysis acceptance criteria will continue to be met with the proposed changes. The proposed changes will not affect the source term, containment isolation, or radiological release assumptions used in evaluating the radiological consequences of an accident previously evaluated. The proposed changes will not alter any assumptions or change any mitigation actions in the radiological consequence evaluations in the FSAR.

The applicable radiological dose acceptance criteria will continue to be met.

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

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

Response: No There are no proposed design changes nor are there any changes in the method by which any safety-related plant SSC performs its safety function. The proposed changes will not affect the normal method of plant operation or change any operating parameters. No equipment performance requirements will be affected. The proposed changes will not alter any assumptions made in the safety analyses.

No new accident scenarios, transient precursors, failure mechanisms, or limiting single failures will be introduced as a result of this amendment. There will be no adverse effect or challenges imposed on any safety-related system as a result of this amendment.

The proposed amendment will not alter the design or performance of the 7300 Process Protection System, Nuclear Instrumentation System, or Solid State Protection System used in the plant protection systems.

Therefore, the proposed changes do not create the possibility of a new or different accident from any accident previously evaluated.

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

Response: No There will be no effect on those plant systems necessary to assure the accomplishment of protection functions. There will be no impact on the overpower limit, departure from nucleate boiling ratio (DNBR) limits, heat flux hot channel factor (FQ), nuclear enthalpy rise hot channel factor (FAH), loss of coolant accident peak cladding temperature (LOCA PCT), peak local power density, or any other margin of safety. The applicable radiological dose consequence acceptance criteria will continue to be met.

The proposed changes do not eliminate any surveillances or alter the frequency of surveillances required by the Technical Specifications. None of the acceptance criteria for any accident analysis will be changed.

Page 7 of 8 The proposed changes will have no impact on the radiological consequences of a design basis accident.

Therefore, the proposed changes do not involve a significant reduction in a margin of safety.

==

Conclusion:==

Based on the above evaluation, AmerenUE concludes that the proposed amendment presents no significant hazards consideration under the standards set forth in 10 CFR 50.92(c) and, accordingly, a finding of "no significant hazards consideration" is justified.

5.2 Applicable Regulatory Requirements I Criteria The regulatory requirements and guidance documents associated with this amendment application include 10 CFR 50 Appendix A, GDC 14 and 15, as discussed below.

GDC 14 states: "The reactor coolant pressure boundary shall be designed, fabricated, erected, and tested so as to have an extremely low probability of abnormal leakage, of rapidly propagating failure, and of gross rupture."

With respect to the structures, systems, and components (SSCs) affected by the proposed TS changes to LCOs 3.4.10, 3.4.11, and 3.4.12, the RCS and RHR piping will continue to be protected from overpressure by means of pressure-relieving devices (the pressurizer PORVs and safety valves and RHR suction relief valves), as required by ASME Section III.

GDC 15 states: "The reactor coolant system and associated auxiliary, control, and protection systems shall be designed with sufficient margin to assure that the design conditions of the reactor coolant pressure boundary are not exceeded during any condition of normal operation, including anticipated operational occurrences."

Steady-state and transient analyses are performed to ensure that reactor coolant system design conditions are not exceeded during normal operation. Protection and control setpoints are based on these analyses. With respect to the structures, systems, and components (SSCs) affected by the proposed TS changes to LCOs 3.4.10, 3.4.11, and 3.4.12, the RCS and RHR piping will continue to be protected from overpressure by means of pressure-relieving devices (the pressurizer PORVs and safety valves and RHR suction relief valves). These valves and their setpoints meet the ASME criteria for overpressure protection.

Additional regulatory requirements are found in the ASME Boiler and Pressure Vessel Code Sections III and XI and 10 CFR 50 Appendices G and K.

Page 8 of 8 There are no changes being proposed in this amendment application such that commitments to the regulatory requirements and guidance documents above would come into question. The evaluations documented above confirm that Callaway Plant will continue to comply with all applicable regulatory requirements.

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

6.0 ENVIRONMENTAL CONSIDERATION

AmerenUE has evaluated the proposed amendment and has determined that the proposed amendment does not involve (i) a significant hazards consideration, (ii) a significant change in the types or significant increase in the amounts of any effluent that may be released offsite, or (iii) a significant increase in individual or cumulative occupational radiation exposure. Accordingly, the proposed amendment meets the eligibility criterion for categorical exclusion set forth in 10 CFR 51.22(c)(9). Therefore, pursuant to 10 CFR 51.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the proposed amendment.

7.1 REFERENCES

1. TSTF-247-A, Revision 0, "Provide Separate Condition Entry for each PORV and Block Valve.

2. TSTF-352-A, Revision 1, "Provide Consistent Completion Time to Reach MODE 4.,,

7.2 PRECEDENTS A search of ADAMS indicates that Point Beach, North Anna, Beaver Valley, Prairie Island, and D.C. Cook adopted the applicable portions of TSTF-247-A during their ITS conversion projects. A separate search of ADAMS indicates that North Anna, Beaver Valley, Prairie Island, ANO, and D.C. Cook adopted TSTF-352-A during their ITS conversion projects. Other plants, such as Sequoyah and Millstone-3, have also adopted applicable portions of TSTF-352-A in non-ITS conversion amendment requests. These precedents are cited for general context only and are available through ADAMS.

ATTACHMENT 2 MARKUP OF TECHNICAL SPECIFICATIONS

Pressurizer Safety Valves 3.4.10 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.10 Pressurizer Safety Valves LCO 3.4.10 Three pressurizer safety valves shall be OPERABLE with lift settings

_>2411 psig and _<2509 psig.

APPLICABILITY: MODES 1, 2, and 3, MODE 4 with all RCS cold leg temperatures > 2750 F.

TES -

NO------------------ - -

The lift settings are not required to be within the LCO limits during MODES 3 and 4 for the purpose of setting the pressurizer safety valves under ambient (hot) conditions. This exception is allowed for 54 hours6.25e-4 days 0.015 hours 8.928571e-5 weeks 2.0547e-5 months following entry into MODE 3 provided a preliminary cold setting was made prior to heatup.

ACTIONS COMPLETION TIME CONDITION REQUIRED ACTION TIME A. One pressurizer safety A.1 Restore valve to 15 minutes valve inoperable. 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 not met. AND OR B.2 Be in MODE 4 with any l.2A hours RCS cold leg *_

Two or more pressurizer temperature < 275°F.

safety valves inoperable.

CALLAWAY PLANT 3.4-19 Amendment No. 137

Pressurizer PORVs 3.4.11 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.11 Pressurizer Power Operated Relief Valves (PORVs)

LCO 3.4.11 Each PORV and associated block valve shall be OPERABLE.

APPLICABILITY: MODES 1, 2, and 3.

ACTIONS

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

Separate Condition entry is allowed for each PORV . a4 e,*

4,a A /ck v, IVe .

CONDITION REQUIRED ACTION COMPLETION CONDTIONTIME A. One or more PORVs A.1 Close and maintain 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months inoperable solely due to power to associated excessive seat leakage. block valve.

B. One PORV inoperable for B.1 Close associated block 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months reasons other than valve.

excessive seat leakage.

AND B.2 Remove power from 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months associated block valve.

AND B.3 Restore PORV to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months OPERABLE status.

(continued)

CALLAWAY PLANT 3.4-21 Amendment No. 164

Pressurizer PORVs 3.4.11

,-n160 w ACTIONS (continued)

COMPLETION TIME CONDITION REQUIRED ACTION TIME C. One block valve inoperable ------------ NOTE ----------

Required Actions do not apply when block valve is inoperable solely as a result of complying with Required Actions B.2 or E.2.

C.1 Place associated PORV 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months in manual control.

AND C.2 Restore block valve to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months 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 of Condition A, B, or C AND not met.

D.2 Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months E. Two PORVs inoperable for E.1 Close associated block 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months reasons other than valves.

excessive seat leakage.

AND E.2 Remove power from 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months associated block valves.

AND E.3 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months AND E.4 Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months (continued)

CALLAWAY PLANT 3.4-22 Amendment No. 137

Pressurizer PORVs 3.4.11 ACTIONS (continued)

COMPLETION TIME CONDITION REQUIRED ACTION TIME F. More than one block valve ------------- not apply when inoperable. Required Action block valve is inoperable solely as a result of complying with Required Action B.2 or E.2.

F.

/ to OPERABLE status.

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 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months CALLAWAY PLANT 3.4-23 Amendment No. 133

COMS 3.4.12 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME D. Required Action and D.1 Increase all RCS cold 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months associated Completion leg temperatures to Time of Condition C not > 2750 F.

met.

OR D.2 Depressurize affected 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months accumulator to less than the maximum RCS pressure for existing cold leg temperature allowed in the PTLR.

E. One required RCS relief E.1 Restore required RCS 7 days valve inoperable in relief valve to MODE 4. OPERABLE status.

F. One required RCS relief F.1 Restore required RCS 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months valve inoperable in relief valve to MODE 5 or 6. OPERABLE status.

G Two required RCS relief G.1 Depressurize RCS and -hours valves inoperable, establish RCS vent of

> 2.0 square inches.

OR Required Action and associated Completion Time of Condition A, B, D, E, or F not met.

OR COMS inoperable for any reason other than Condition A, B, C, D, E, or F.

CALLAWAY PLANT 3.4-27 Amendment No. 133

ATTACHMENT 3 RETYPED TECHNICAL SPECIFICATIONS

Pressurizer Safety Valves 3.4.10 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.10 Pressurizer Safety Valves LCO 3.4.10 Three pressurizer safety valves shall be OPERABLE with lift settings 2411 psig and

2509 psig.

APPLICABILITY: MODES 1, 2, and 3, MODE 4 with all RCS cold leg temperatures > 275°F.

--. NOTES The lift settings are not requi'red to be within the LCO limits during MODES 3 and 4 for the purpose of setting the pressurizer safety valves under ambient (hot) conditions. This exception is allowed for 54 hours6.25e-4 days 0.015 hours 8.928571e-5 weeks 2.0547e-5 months following entry into MODE 3 provided a preliminary cold setting was made prior to heatup.

ACTIONS COMPLETION TIME CONDITION REQUIRED ACTION TIME A. One pressurizer safety A.1 Restore valve to 15 minutes valve inoperable. 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 not met. AND OR B.2 Be in MODE 4 with any 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months RCS cold leg Two or more pressurizer temperature < 275 0 F.

safety valves inoperable.

CALLAWAY PLANT 3.4-19 Amendment No. ###

Pressurizer PORVs 3.4.11 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.11 Pressurizer Power Operated Relief Valves (PORVs)

LCO 3.4.11 Each PORV and associated block valve shall be OPERABLE.

APPLICABILITY: MODES 1, 2, and 3.

ACTIONS

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

Separate Condition entry is all'owed for each PORV and each block valve. I COMPLETION CONDITION REQUIRED ACTION TIME A. One or more PORVs A.1 Close and maintain 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months inoperable solely due to power to associated excessive seat leakage. block valve.

B. One PORV inoperable for B.1 Close associated block 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months reasons other than valve.

excessive seat leakage.

AND B.2 Remove power from 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months associated block valve.

AND B.3 Restore PORV to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months OPERABLE status.

(contunuea)

CALLAWAY PLANT 3.4-21 Amendment No. ##

Pressurizer PORVs 3.4.11 ACTIONS (continued)

COMPLETION TIME CONDITION REQUIRED ACTION TIME F. More than one block valve ---------- -- NOTE ------------------

inoperable. Required Action F.1 does not apply when block valve is inoperable solely as a result of complying with Required Action B.2 or E.2.

F.1 Restore one block valve 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months I to OPERABLE status.

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 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months CALLAWAY PLANT 3.4-23 Amendment No. ###

COMS 3.4.12 ACTIONS (continued)

COMPLETION TIME CONDITION REQUIRED ACTION TIME D. Required Action and D.1 Increase all RCS cold 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months associated Completion leg temperatures to Time of Condition C not > 275 0 F.

met.

OR D.2 Depressurize affected 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months accumulator to less than the maximum RCS pressure for existing cold leg temperature allowed in the PTLR.

E. One required RCS relief E.1 Restore required RCS 7 days valve inoperable in relief valve to MODE 4. OPERABLE status.

F. One required RCS relief F.1 Restore required RCS 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months valve inoperable in relief valve to MODE 5 or 6. OPERABLE status.

G Two required RCS relief G.1 Depressurize RCS and 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months valves inoperable, establish RCS vent of

> 2.0 square inches.

OR Required Action and associated Completion Time of Condition A, B, D, E, or F not met.

OR COMS inoperable for any reason other than Condition A, B, C, D, E, or F.

CALLAWAY PLANT 3.4-27 Amendment No. ###

ATTACHMENT 4 PROPOSED TECHNICAL SPECIFICATION BASES CHANGES (for information only)

Pressurizer Safety Valves B 3.4.10 BASES ACTIONS B.1 and B.2 (continued)

If the Required Action of A. 1 cannot be net within the required Completion Time or if two or more pres urizer safety valves are inoperable, the plant must be brought to a MODE in which the requirement does not apply. To achiev this status, the plant must be brought to at least MODE 3 within 6 ho rs and to MODE 4 with any RCS cold leg temperature < 275 0 F within -*ours. 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. With any RCS cold leg temperatures at or below 275 0 F, overpressure protection is provided by the COMS. The change from MODE 1, 2, or 3 to MODE 4 reduces the RCS energy (core power and pressure), lowers the potential for large pressurizer insurges, and thereby removes the need for overpressure protection by three pressurizer safety valves.

SURVEILLANCE SR 3.4.10.1 REQUIREMENTS SRs are specified in the Inservice Testing Program. Pressurizer safety valves are to be tested in accordance with the requirements of Section XI of the ASME Code (Ref. 4), which provides the activities and Frequencies necessary to satisfy the SRs. No additional requirements are specified.

The pressurizer safety valve setpoint is +/-2% for OPERABILITY; however, the valves are reset to +/-1% during the Surveillance to allow for drift.

REFERENCES 1. ASME, Boiler and Pressure Vessel Code,Section III.

2. FSAR, Chapter 15.

3. WCAP-7769, Rev. 1, June 1972.

4. ASME, Boiler and Pressure Vessel Code,Section XI.

CALLAWAY PLANT B 3.4.10-4 Revision 6m

Pressurizer PORVs B 3.4.11 BASES (Continued)

APPLICABILITY In MODES 1, 2, and 3, the PORV and its block valve are required to be OPERABLE to limit the potential for a small break LOCA through the flow path. The most likely cause for a PORV small break LOCA is a result of a pressure increase transient that causes the PORV to open. Imbalances in the energy output of the core and heat removal by the secondary system can cause the RCS pressure to increase to the PORV opening setpoint. The most rapid increases will occur at the higher operating power and pressure conditions of MODES 1 and 2. The PORVs are required to be.OPERABLE in MODES 1, 2, and 3 for automatic pressure relief to fulfill the required function of minimizing challenges to the pressurizer safety valves during an inadvertent ECCS actuation event.

The PORVs are also required to be OPERABLE in MODES 1, 2, and 3 for manual actuation to mitigate a steam generator tube rupture event.

Pressure increases are less prominent in MODE 3 because the core input energy is reduced, but the RCS pressure is high. Therefore, the LCO is applicable in MODES 1, 2, and 3. The LCO is not applicable in MODE 4 when both pressure and core energy are decreased and the pressure surges become much less significant. The PORV setpoint is reduced for COMS in MODES 4 (with any RCS cold leg temperature < 2750 F), 5, and 6 with the reactor vessel head in place. LCO 3.4.12 addresses the PORV requirements in these MODES.

ACTIONS A Note has been added to clarify that all pressurizer PORV are treated as Completion Time is on a component basis). 6ýa,,/

separate entities, each with separate Completion Times (i .,the

/0le C, k/Ve' A.1 The PORVs may be inoperable because of excessive seat leakage yet capable of automatic pressure relief and capable of being manually cycled. In this condition, either the PORVs must be restored or the flow path isolated within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months . The associated block valves must be closed, but power must be maintained to the associated block valves, since removal of power would render the block valve inoperable. Credit for automatic PORV operation is taken in the Reference 1 safety analysis.

However, the PORVs are considered OPERABLE in either the manual or automatic mode, as long as the automatic actuation circuitry is OPERABLE and the PORV can be made available for automatic pressure relief by timely operator actions (Ref. 1). Although a PORV may be designated inoperable, it may be available for automatic pressure relief and capable of being manually opened and closed and, therefore, able to perform its required safety functions.

(continued)

CALLAWAY PLANT B 3.4.11-4 Revision 6

Pressurizer PORVs B 3.4.11 BASES ACTIONS E.1 E.2. E.3. and E.4 (continued) p rnabi If more than one PO is inoperable for reasons other than excessive seat leakage, it is ne essary to either restore at least one valve within the Completion Time of hour or isolate the flow path by closing and removing the power the associated block valves. The Completion Time of 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months is reasona le, based on the small potential for challenges to the system during this ti e and provides the operator time to correct the situation. If one PO V is restored and one PORV remains inoperable, then the plant will in Condition B with the time clock started at the time the remaining PORV was discovered to be inoperable If no PORVs are restored within the Completion Time, the plant must 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 ho Frs. The allowed Completion Times are reasonable, based on opera ng experience, to reach the required plant conditions from full power conditions in an orderly manner and without challenging plant sy ems. In MODES 1, 2, 3, and 4 (with any RCS cold leg temperature _< 50 F), 5, and 6 (with the reactor vessel head on), automatic PORV OP RABILITY is required.

See LCO 3.4.12 for requirements in MODE 4, 5, and 6.

F. 1 66WRýe- `4 7 -P' -e fiV40

?'Ix If more than one block valve is inoperable, it is necessary to;h s store at least one block valve within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months . The Completion Timee reasonable, based on the small potential for challenges to the system du ng this time and provide the operator time to correct the situation.

Z-1V4E'T 'C / dioex /'-

The Rejuiied Actioný nodified by a Note stating that44e Required Actionkd ot apply if the sole reason for the block valve being declared inoperable is as a result of power being removed to comply with other Required Actions. In this event, the Required Actions for inoperable PORV(s) (which require the block valve power to be removed once it is closed) are adequate to address the condition. While it may be desirable to also place the PORV(s) in manual control, this may not be possible for all causes of Condition B or E entry with PORV(s) inoperable and not capable of automatic pressure relief or not capable of being manually cycled (e.g., as a result of failed control power fuse(s) or control switch malfunction(s)).

(continued)

CALLAWAY PLANT B 3.4.11-7 Revision 6

INSERT B1 If one block valve is restored within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months and one block valve remains inoperable, then the plant will remain in Condition C with the time clock started at the time the remaining block valve was discovered to be inoperable (separate Condition entry for the block valves).

COMS B 3.4.12 BASES ACTIONS F.1 (continued) period with only one OPERABLE RCS relief valve to protect against overpressure events.

G.1 The RCS must be depressurized and a vent must be established within

/a.C.-8-hours when:

a. Both required RCS relief valves are inoperable; or

b. A Required Action and associated Completion Time of Condition A, B, D, E, or F is not met; or

c. The COMS is inoperable for any reason other than Condition A, B, C, D, E, or F.

The vent must be sized >_2.0 square inches to ensure that the flow capacity is greater than that required for the worst case mass input transient reasonable during the applicable MODES. This action is needed to protect the RCPB from a low temperature overpressure event and a possible brittle failure of the reactor vessel.

The Completion Time considers the time required to place the plant in this Condition and the relatively low probability of an overpressure event during this time period due to increased operator awareness of administrative control requirements.

SURVEILLANCE SR 3.4.12.1, SR 3.4.12.2, and SR 3.4.12.3 REQUIREMENTS To minimize the potential for a low temperature overpressure event by limiting the mass input capability, a maximum of zero safety injection pumps and a maximum of one centrifugal charging pump are verified to be capable of injecting into the RCS and the accumulator discharge isolation valves are verified closed with power removed from the valve operators (Refs. 10 and 11). Verification that each accumulator is isolated is only required when accumulator isolation is required as stated in Note 3 to the LCO.

The safety injection pumps and one centrifugal charging pump are rendered incapable of injecting into the RCS through removing the power from the pumps by racking the breakers out under administrative control.

An alternate method of cold overpressure protection control may be employed using at least two independent means to render a pump (continued)

CALLAWAY PLANT B 3.4.12-10 Revision 6

ATTACHMENT 5 COPIES OF APPROVED TRAVELERS TSTF-247-A AND TSTF-352-A WITH NUREG-1431 STS CHANGE MARKUPS

WOG-102, Rev. 0 TSTF-247-A, Rev. 0 Technical Specification Task Force Improved Standard Technical Specifications Change Traveler Provide separate condition entry for each PORV and block valve NUREGs Affected: D1 1430 V 1431 [] 1432 FD 1433 n 1434 Classification: 3) Improve Specifications Recommended for CLIIP?: (Unassigned)

Correction or Improvement: (Unassigned)

Industry

Contact:

Steve Wideman, (620) 364-4037, stwidem@wcnoc.com This change provides separate condition entry for each PORV and block valve. It also adds bracketed information to NUREG-1431 to accommodate plants with three PORVs and associated block valves. A Reviewer's Note is added to explain the bracketed information.

The existing LCO 3.4.11 Conditions allow separate condition entry for each PORV. The Conditions and Required Actions provide appropriate compensatory measures for separate condition entry. The Conditions and Required Actions also provide appropriate compensatory actions for separate condition entry for each block valve. Therefore, the Actions Note is modified to allow separate condition entry for each block valve.

The proposed Condition F is modified to apply when all block valves are inoperable. The existing actions are modified to not require that the PORVs be placed in manual control because if the block valves are not restored within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months a plant shutdown is required and the PORVs will be needed for Low Temperature OverPressure protection. Therefore, the PORVs should not be placed in manual control. In NUREG-1431, The bracketed Action F.3 is eliminated (Restore remaining block valve(s) to OPERABLE status) as with separate condition entry for each block valve it is not needed.

An editorial change is made to NUREG-1432 which moved the discussion of the Action Notes above the first action.

The applicability of this changes is based on Combustion Engineering reactors not having three PORVs and block valves and B&W plants having only one PORV and block valve.

Revision History OG Revision 0 Revision Status: Active Revision Proposed by: Byron/Braidwood Revision

Description:

Original Issue Owners Group Review Information Date Originated by OG: 14-Jan-97 Owners Group Comments:

(No Comments)

Owners Group Resolution: Approved Date: 14-Jan-97 TSTF Review Information TSTF Received Date: 20-Jan-97 Date Distributed for Review: 06-Jan-98 OG Review Completed: W BWOG W WOG nJ CEOG n] BWROG TSTF Comments:

Originally distributed on 4/8/97 CEOG Comments from 4/24/97: Applicable, accepts.

31-Jul-03 Traveler Rev. 3. Copyright (C) 2003, EXCEL Services Corporation. Use by EXCEL Services associates, utility clients, and the U.S. Nuclear Regulatory Commission is granted. All other use without written permission is prohibited.

WOG-102, Rev. 0 TSTF-247-A, Rev. 0 OG Revision 0 Revision Status: Active B&W - NA, accepts Note I of Actions and F.1 are applicable to CEOG. Other changes apply only to WOG.

TSTF Resolution: Approved Date: 05-Feb-98 NRC Review Information NRC Received Date: 10-Mar-98 NRC Comments:

9/24/98 - NRC stated that they had approved.

Final Resolution: NRC Approves Final Resolution Date: 24-Sep-98 Affected Technical Specifications Action 3.4.11 Pressurizer PORVs Change

Description:

Action Note 1 Action 3.4.11 Bases Pressurizer PORVs Change

Description:

Action Notes Action 3.4.11.F Pressurizer PORVs Action 3.4.11.F Bases Pressurizer PORVs Action 3.4.11.C Pressurizer PORVs NUREG(s)- 1431 Only Action 3.4.11.C Bases Pressurizer PORVs NUREG(s)- 1431 Only Action 3.4.11.A Bases Pressurizer PORVs NUREG(s)- 1432 Only 31-Jul-03 Traveler Rev. 3. Copyright (C) 2003, EXCEL Services Corporation. Use by EXCEL Services associates, utility clients, and the U.S. Nuclear Regulatory Commission is granted. All other use without written permission is prohibited.

Pressurizer PORVs 3.4.11 T~s TF-7 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.11 Pressurizer Power Operated Relief Valves (PORVs)

LCO 3.4.11 Each PORV and associated block valve shall be OPERABLE.

APPLICABILITY: MODES 1. 2. and 3..

ACTIONS

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

1. Separate Condition entry is allowed for each PORV.

2. LCO 3.0.4 is not applicable.

CONDITION REQUIRED ACTION COMPLETION TIME A. One or more PORVs A.1 Close and maintain 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months inoperable and capable power to associated of being manually block valve.

cycled.

B. One [or two] PORV[s] B.1 Close associated 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months inoperable and not block valve[s].

capable of being manually cycled. AND B.2 Remove power from 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months associated block valve[s].

AND B.3 Restore PORV[s] to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months OPERABLE status.

(continued)

WOG STS 3.4-23 Rev 1, 04/07/95

Pressurizer PORVs 3.4.11 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME C. One block valv C.I Place associated PORV 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months inoperable. in manual control.

AND C.2 Restore block valveg 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months 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 of Condition A, AND B, or C not met.

D.2 Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months E. Two [or three] PORVs E.1 Close associated 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months inoperable and not block valves.

capable of being manually cycled. AND E.2 Remove power from 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months associated block valves.

AND E.3 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months AND E.4 Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months

ontinued)

I I ____

__ ___ ___ ____ ___ ___I.

WOG STS 3.4-24 Rev 1, 04/07/95

Pressurizer PORVs 3.4.11 I

F. (continued) F.r Restore one block valve to OPERABLE status [if three block valves are i noperabl e].

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 AND not met.

G.2 Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.4.11.1 ----------------- NOTE----------------

Not required to be met with block valve closed in accordance with the Required Action of Condition B or E.

Perform a complete cycle of each block 92 days valve.

SR 3.4.11.2 Perform a complete cycle of each PORV. [18] months (continued)

WOG STS 3.4-25 Rev 1, 04/07/95

Pressurizer PORVs B 3.4.11 71 -- ,2L/7 BASES (continued)

APPLICABILITY In MODES 1, 2, and 3, the PORV and its block valve are required to be OPERABLE to limit the potential for a small break LOCA through the flow path. The most likely cause for a PORV small break LOCA is a result of a pressure increase transient that causes the PORV to open. Imbalances in the energy output of the core and heat removal by the secondary system can cause the RCS pressure to increase to the PORV opening setpoint. The most rapid increases will occur at the higher operating power and pressure conditions of MODES 1 and 2. The PORVs are also required to be OPERABLE in MODES 1, 2, and 3 to minimize challenges to the pressurizer safety valves.

Pressure increases are less prominent in MODE 3 because the core input energy is reduced, but the RCS pressure is high.

Therefore, the LCO is applicable in MODES 1, 2, and 3. The LCO is not applicable in MODE 4 when both pressure and core energy are decreased and the pressure surges become much less significant. The PORV setpoint is reduced for LTOP in MODES 4, 5, and 6 with the reactor vessel head in place.

LCO 3.4.12 addresses the PORV requirements in these MODES.

ACTIONS Note 1 has been added to clarify that all pressurizer PORVs are treated as separate entities, each with separate Completion Times (i.e., the Completion Time is on a m component basis). The exception for LCO 3.0.4, Note 2, permits entry into MODES 1, 2, and 3 to perform cycling of the PORVs or block valves to verify their OPERABLE status.

Testing is not performed in lower MODES.

A.1 /

With the PORVs inoperable and capable of being manually cycled, either the PORVs must be restored or the flow path isolated within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months . The block valves should be closed but power must be maintained to the associated block valves, since removal of power would render the block valve inoperable. Although a PORV may be designated inoperable, it may be able to be manually opened and closed, and therefore, able to perform its function. PORV inoperability may be due to seat leakage, instrumentation problems, automatic control problems, or other causes that do not prevent manual use and do not create a possibility for a (continued)

WOG STS B 3.4-52 Rev 1, 04/07/95

73TFTP-,2 (4-7 Insert 1

Reviewer's Note ----------------

The bracketed options in Conditions B, C, E, and F are to accommodate plants with three PORVS and associated block valves.

Pressurizer PORVs B 3.4.11 TTF-2'17 BASES ACTIONS A.1 (continued) small break LOCA. For these reasons, the block valve may be closed but the Action requires power be maintained to the valve. This Condition is only intended to permit operation of the plant for a limited period of time not to exceed the next refueling outage (MODE 6) so that maintenance can be performed on the PORVs to eliminate the problem condition.

Normally, the PORVs should be available for automatic mitigation of overpressure events and should be returned to OPERABLE status prior to entering startup (MODE 2).

Quick access to the PORV for pressure control can be made when power remains on the closed block valve. The Completion Time of 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months is based on plant operating experience that has shown that minor problems can be corrected or closure accomplished in this time period.

B.1, B.2. and B.3 If one [or two] PORV[s] is inoperable and not capable of being manually cycled, it must be either restored or isolated by closing the associated block valve and removing the power to the associated block valve. The Completion Times of 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months are reasonable, based on challenges to the PORVs during this time period, and provide the operator adequate time to correct the situation. If the inoperable valve cannot be restored to OPERABLE status, it must be isolated within the specified time. Because there is at least one PORV that remains OPERABLE, an additional 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months is provided to restore the inoperable PORV to OPERABLE status. If the PORV cannot be restored within this additional time, the plant must be brought to a MODE in which the LCO does not apply, as required by Condition D.

C.1 and C.2 If one block valve inoperab e, then it is necessary to either restore the block valve to OPERABLE status within the Completion Time of I hour or place the associated PORV in manual control. The prime importance for the capability to close the block valv 's to isolate a stuck open PORV.

Therefore, if the block valve cannot be restored to OPERABLE (continued)

WOG STS B 3.4-53 Rev 1, 04/07/95

Pressurizer PORVs B 3.4.11 BASES ACTIONS C.1 and C.2 (continued) status within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months , the Required Action is to place the CC3 PORV in manual control to preclude its automatic opening for an overpressure event and to avoid the pgtpetial for a stuck open PORV at a time that the block valve noera eThe Completion Time of 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months is reasonable, based on the small potential for challenges to the system during this time period, and provides the operator time to correct the situation. Because at least one PORV remains OPERABLE, the operator is permitted a Completion Time of 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months to restore the inoperable block valveoto OPERABLE status. The time allowed to restore the block valve s based upon tWe -

Completion Time for restoring an inoperable PORV in Condition B, since the PORVs are not capable of mitigating an overpressure event when placed in manual control. If the oc v restored within the Completion Time of Shourshe power will be restored and the PORV restored e to OPERABLE status. If it cannot be restored within this additional time, the plant must be brought to a MODE in which the LCO does not apply, as required by Condition D.

D.1 and D.2 If the Required Action of Condition A, B, or C is not met, then 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 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 plant conditions from full power conditions in an orderly manner and without challenging plant systems. In MODES 4 and 5, maintaining PORV OPERABILITY may be required.

See LCO 3.4.12.

E.1. E.2. E.3, and E.4 If more than one PORV is inoperable and not capable of being manually cycled, it is necessary to either restore at least one valve within the Completion Time of I hour or isolate the flow path by closing and removing the power to the associated block valves. The Completion Time of 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months is reasonable, based on the small potential for challenges to the system during this time and provides the operator time (continued)

WOG STS B 3.4-54 Rev 1, 04/07/95

Pressurizer PORVs B 3.4.11 7,S 7TF-,/ q -7 BASES ACTIONS E.1, E.2, E.3, and E.4 (continued) to correct the situation. If one PORV is restored and one PORV remains inoperable, then the plant will be in Condition B with the time clock started at the original declaration of having two [or three] PORVs inoperable. If no PORVs are restored within the Completion Time, then 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 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 plant conditions from full power conditions in an orderly manner and without challenging plant systems. In MODES 4 and 5, maintaining PORV OPERABILITY may be required. See LCO 3.4.12.

F.I

I'*k)o Lo- 4'e~eJ/ If o

toe nr an e*eblock valve O'- e k va inoperable, it is necessary wi tbft the pleti

~*/~uofou or o, c~)Ee t h~' oci trd PpOl..n mai L ontr and res ore at least one ock valve within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months

ýý re( ýme tWema n b va v thiný- V.

The Completion Time" f_)reasonable, based on the small potential for challenge to the system during this time and provide the operator time to correct the situation.

G.1 and G.2 If the Required Actions of Condition F are not met, then 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 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 plant conditions from full power conditions in an orderly manner and without challenging plant systems. In MODES 4'and 5, maintaining PORV OPERABILITY may be required. See LCO 3.4.12.

(continued)

WOG STS B 3.4-55 Rev 1, 04/07/95

CEOG-130, Rev. 0 TSTF-352-A, Rev. I Technical Specification Task Force Improved Standard Technical Specifications Change Traveler Provide Consistent Completion Time to Reach MODE 4 NUREGs Affected: W 1430 W 1431 Rv 1432 R 1433 [] 1434 Classification: 2) Consistency/Standardization Recommended for CLIIP?: (Unassigned)

Correction or Improvement: (Unassigned)

Industry

Contact:

Patricia Furio, (410) 495-4374, patricia.s.furio@ccnppi.com Revise the Completion Times for Required Actions which direct entry into conditions below MODE 4 to allow sufficient time to safely perform the actions. The Specifications affected are Pressurizer Safety Valves, Atmospheric Dump Valves, and Condensate Storage Tank. In a different, but related, change, the time to go from LTOP conditions to having the RCS vented is revised to be consistent between NUREGs and to allow sufficient time to complete the activity.

04-Aug-03 Traveler Rev. 3. Copyright (C) 2003, EXCEL Services Corporation. Use by EXCEL Services associates, utility clients, and the U.S. Nuclear Regulatory Commission is granted. All other use without written permission is prohibited.

CEOG-130, Rev. 0 TSTF-352-A, Rev. I The following presents the allowed times for attaining various shutdown conditions from MODE I normal operating pressure and temperature (and assuming the required equipment is available):

MODE Completion Time 3 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months 4 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 5 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months However, many Required Actions specify entry into conditions which take longer to achieve than MODE 4, but only allow the normal 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months to enter those conditions from MODE 3. This leaves insufficient time to enter MODE 4 and the required condition in a controlled manner. Some other specifications allow 18 hours2.083333e-4 days 0.005 hours 2.97619e-5 weeks 6.849e-6 months for similar circumstances. Therefore, for those conditions, the Completion Time is revised to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months (halfway between the MODE 4 and MODE 5 Completion Times) to provide a consistent, adequate Completion Time. The affected Conditions are discussed individually below.

1. Specification 3.4.10, Pressurizer Safety Valves, Condition B, requires the plant to be in MODE 4 and cooled down to the LTOP enable temperature within [12] hours. Assuming the LTOP enable temperature is below the MODE 4 entry conditions, additional time should be provided beyond the normal 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months allowed to reach MODE 4.

2. Specification 3.7.4, Atmospheric Dump Valves, Condition C, requires the plant to be in MODE 4 without reliance on the SG for heat removal within [12] hours. This requires cooling to shutdown cooling entry conditions, which for many designs is below the MODE 4 entry temperature. In order to meet this Completion Time, many plants would have to start shutdown before the restoration period, allowed by conditions A or B, was up. Therefore, using the logic presented above, the Completion Time is revised to 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months for going from MODE 1 to MODE 4 without reliance on SG for heat removal. The additional time is needed for the cooldown and depressurization of the RCS to SDC entry conditions.

3. Specification 3.7.6, Condensate Storage Tank, Condition B, requires the plant to be in MODE 4 without reliance on the SG for heat removal within [18] hours. (Note that 3.7.4 allows 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months for the same Required Action.) In order to do this, many plants would have to start shutdown before the restoration period, allowed by Condition A, was expired. Based on the logic given above, the Completion Time is revised to [24] hours for going from MODE 1 to MODE 4 without reliance on SG for heat removal. The additional time is needed for the cooldown and depressurization of the RCS to SDC entry conditions.

4. NUREG-1431 and NUREG-1432, Specification 3.4.10, LTOP, Condition G, requires the plant to depressurize the RCS and establish a vent of [ ] inches within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months . NUREG-1430 allows 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months for this same condition. The proposed change is to extend the 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Completion Time in NUREGs 1431 and 1432 to 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . Eight hours is insufficient time to plan a MODE change, cool down (following the plant cooldown rate limits), plan and execute the maintenance activity of opening a vent, and cool the RCS sufficiently to safely open a vent. The 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months allowed by NUREG-1430 is more appropriate.

5. (NUREG-1430 only) Specification 3.4.9, Pressurizer, Condition B, requires the plant to be in MODE 4 with RCS temperature <= [275] F within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months . This is below the MODE 4 entry temperature of [350]F, but only 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months is allowed, the same Completion Time allowed to enter MODE 4. In order to do this, many plants would have to start shutdown before the restoration period, allowed by Condition A, was expired. Based on the logic given above, the Completion Time is revised to [24] hours for going from MODE 1 to MODE 4 with RCS temperature <= [275] F. The additional time is needed for the cooldown of the RCS to the specified temperature.

Revision History OG Revision 0 Revision Status: Closed Revision Proposed by: Palo Verde Revision

Description:

Original Issue 04-Aug-03 Traveler Rev. 3. Copyright (C) 2003, EXCEL Services Corporation. Use by EXCEL Services associates, utility clients, and the U.S. Nuclear Regulatory Commission is granted. All other use without written permission is prohibited.

1\1 CEOG-130, Rev. 0 TSTF-352-A, Rev. 1 OG Revision 0 Revision Status: Closed Owners Group Review Information Date Originated by OG: 08-Mar-99 Owners Group Comments:

(No Comments)

Owners Group Resolution: Approved Date: 16-Mar-99 TSTF Review Information TSTF Received Date: 02-Jun-99 Date Distributed for Review: 17-Jun-99 OG Review Completed: W BWOG V WOG V CEOG [] BWROG TSTF Comments:

Applicable to PWR OGs.

TSTF Resolution: Approved Date: 07-Jul-99 NRC Review Information NRC Received Date: 04-Aug-99 NRC Comments: Date of NRC Letter: 16-Mar-00 1/10/00 - forwarded to PRA branch of NRC.

2/10/00 - NRC provided comments. Change to 3.4.12 requires PRA evaluation.

Final Resolution: Superceded by Revision Final Resolution Date: 16-Feb-00 TSTF Revision 1 Revision Status: Active Revision Proposed by: TSTF Revision

Description:

The revision 0 change to extend the LCO 3.4.12, LTOP, Completion Time from 8 and 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months to [24] hours is eliminated and a change to NUREG-1431 and NUREG-1432 to extend the 8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months Completion Time to 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months is proposed. Item 4 in the Justification is revised to describe the change.

TSTF Review Information TSTF Received Date: 08-Mar-00 Date Distributed for Review: 08-Mar-00 OG Review Completed: W BWOG [] WOG [] CEOG [] BWROG TSTF Comments:

(No Comments)

TSTF Resolution: Approved Date: 08-Mar-00 NRC Review Information NRC Received Date: 13-Mar-00 04-Aug-03 Traveler Rev. 3. Copyright (C) 2003, EXCEL Services Corporation. Use by EXCEL Services associates, utility clients, and the U.S. Nuclear Regulatory Commission is granted. All other use without written permission is prohibited.

CEOG-130, Rev. 0 TSTF-352-A, Rev. I TSTF Revision 1 Revision Status: Active Final Resolution: NRC Approves Final Resolution Date: 13-Apr-00 Affected Technical Specifications Action 3.4.10.B Pressurizer Safety Valves Action 3.4.10.B Bases Pressurizer Safety Valves Action 3.7.6.B CST Action 3.7.6.B Bases CST Action 3.4.9.B Pressurizer NUREG(s)- 1430 Only Action 3.4.9.B Bases Pressurizer NUREG(s)- 1430 Only Action 3.7.4.C AVVs NUREG(s)- 1430 Only Action 3.7.4.C Bases AVVs NUREG(s)- 1430 Only Action 3.4.12.G LTOP System NUREG(s)- 1431 1432 Only Action 3.4.12.G Bases LTOP System NUREG(s)- 1431 1432 Only Action 3.7.4.C ADVs NUREG(s)- 1431 1432 Only Action 3.7.4.C Bases ADVs NUREG(s)- 1431 1432 Only 04-Aug-03 Traveler Rev. 3. Copyright (C) 2003, EXCEL Services Corporation. Use by EXCEL Services associates, utility clients, and the U.S. Nuclear Regulatory Commission is granted. All other use without written permission is prohibited.

Pressurizer Safety Valves 3.4.10 3.4 REACTOR COOLANT SYSTEM (RCS) _7S7,=3g4,e#

3.4.10 Pressurizer Safety Valves LCO 3.4.10 [Three] pressurizer safety valves shall be OPERABLE with lift settings a [24601 psig and s [2510] psig.

APPLICABILITY: MODES 1. 2. and 3, MODE 4 with all RCS cold leg temperatures > [275]°F.

........................ NOTE ----------------------------

The lift settings are not required to be within the LCO limits during MODES 3 and 4 for the purpose of setting the pressurizer safety valves under ambient (hot) conditions.

This exception is allowed for [54) hours following entry into MODE 3 provided a preliminary cold setting was made prior to heatup.

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One pressurizer safety A.1 Restore valve to 15 minutes valve inoperable. 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 not met. AND OR B.2 Be in MODE 4 with any hours RCS cold leg Two or more temperatures pressurizer safety S [275]°F.

valves inoperable.

WOG STS 3.4-21 Rev 1. 04/07/95

Pressurizer Safety Valves B 3.4.10 BASES ACTIONS A.1 (continued) coincident with an RCS overpressure event could challenge the integrity of the pressure boundary.

B.1 and B.2 If the Required Action of A.1 cannot be met within the required Completion Time or if two or more pressurizer safety valves are inoperable, the plant must be brought to a MODE in which the requirement 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 t E 4 ith any RCS cold leg emperatures [2 5]°F within hours. 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. With any RCS cold leg temperatures at or below [275]°F, overpressure protection is provided by the LTOP System. The change from MODE 1, 2, or 3 to MODE 4 reduces the RCS energy (core power and pressure), lowers the potential for large pressurizer insurges. and thereby removes the need for overpressure protection by [three] pressurizer safety valves.

SURVEILLANCE SR 3.4.10,1 REQUIREMENTS SRs are specified in the Inservice Testing Program.

Pressurizer safety valves are to be tested in accordance with the requirements of Section XI of the ASME Code (Ref. 4), which provides the activities and Frequencies necessary to satisfy the SRs. No additional requirements are specified.

The pressurizer safety valve setpoint is +/- [33% for OPERABILITY; however, the valves are reset to +/- 1% during the Surveillance to allow for drift.

REFERENCES 1. ASME, Boiler and Pressure Vessel Code.Section III.

2. FSAR. Chapter [15].

(continued)

WOG STS B 3.4-48 Rev 1. 04/07/95

LTOP System 3.4.12 Srs-rF-352) ,.(

ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME G. Two required RCS G.1 Depressurize RCS and 1hours relief valves establish RCS vent of inoperable. a [2.07] square OR inches.

Required Action and associated Completion Time of Condition A.

[B,] D, E, or F not met.

OR LTOP System inoperable for any reason other than Condition A, [B.]

C, D, E, or F.

SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.4.12.1 Verify a maximum of [one] [HPI] pump is 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months capable ofinjecting into the RCS.

3.4.12.2 Verify a maximum of one charging pump is 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months capable of injecting into the RCS.

SR 3.4.12.3 Verify each accumulator is isolated. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months (continued)

WOG STS 3.4-30 Rev 1. 04/07/95

LTOP System B 3.4.12 BASES ACTIONS E.1 (continued)

The Completion Time considers the facts that only one of the RCS relief valves is required to mitigate an overpressure transient and that the likelihood of an active failure of the remaining valve path during this time period is very low.

F..1 The consequences of operational events that will overpressurize the RCS are more severe at lower temperature (Ref. 7). Thus, with one of the two RCS relief valves inoperable in MODE 5 or in MODE 6 with the head on. the Completion Time to restore two valves to OPERABLE status is 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

The Completion Time represents a reasonable time to investigate and repair several types of relief valve failures without exposure to a lengthy period with only one OPERABLE RCS relief valve to protect against overpressure events.

G.1 The RCS must be depressurized and a vent must be established within;0 hours0 days 0 hours 0 weeks 0 months when:

a. Both required RCS relief valves are inoperable: or

b. A Required Action and associated Completion Time of Condition A, [B.] D. E. or F is not met: or

c. The LTOP System is inoperable for any reason other than Condition A, [B,] C, D. E. or F.

The vent must be sized z [2.07) square inches to ensure that the flow capacity is greater than that required for the worst case mass input transient reasonable during the applicable MODES. This action is needed to protect the RCPB from a low temperature overpressure event and a possible brittle failure of the reactor vessel.

(continued)

WOG STS B 3.4-68 Rev 1. 04/07/95

AOVs 3.7.4

--rs7,--:?5 R)R,4 3.7 PLANT SYSTEMS 3.7.4 Atmospheric Dump Valves (ADVs)

LCO 3.7.4 [Three] ADV lines shall be OPERABLE.

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

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

inoperable. LCO 3.0.4 is not applicable.

Restore required ADV 7 days line to OPERABLE status.

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

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

WOG STS 3.7-9 Rev 1. 04/07/95

ADVs B 3.7.4 BASES ACTIONS C.A and C.2 (continued) [2q)

MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months , and in MODE 4, wit 1reliance upon steam generator for heat removal, within ( hours. The allowed Completion Times are reasonable, Oasd on operating experience, to reach the required unit conditions from full power conditions in an orderly manner and without challenging unit systems.

SURVEILLANCE SR 3.7.4.1 REQUIREMENTS To perform a controlled cooldown of the RCS. the ADVs must be able to be opened either remotely or locally and throttled through their full range. This SR ensures that the ADVs are tested through a full control cycle at least once per fuel cycle. Performance of inservice testing or use of an ADV during a unit cooldown may satisfy this requirement. Operating experience has shown that these components usually pass the Surveillance when performed at the [18) month Frequency. The Frequency is acceptable from a reliability standpoint.

SR 3.7.4.2 The function of the block valve is to isolate a failed open ADV.. Cycling the block valve both closed and open demonstrates its capability to perform this function.

Performance of inservice testing or use of the block valve during unit cooldown may satisfy this requirement.

Operating experience has shown that these components usually pass the Surveillance when performed at the [18] month Frequency. The Frequency is acceptable from a reliability standpoint.

REFERENCES 1. FSAR, Section [10.3].

WOG STS B 3.7-22 Rev 1. 04/07/95

CST 3.7.6 3.7 PLANT SYSTEMS 3.7.6 Condensate Storage Tank (CST)

LCO 3.7.6 The CST level shall be ? [110.000 gall.

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

ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. CST level not within A.1 Verify by 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months limit. administrative means OPERABILITY of backup AND water supply.

Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months thereafter AND A.2 Restore CST level to 7 days within limit.

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 not met. AND B.2 Be in MODE 4. without [ hours reliance on steam generator for heat removal. L2)

WOG STS 3.7-15 Rev 1. 04/07/95

CST B 3.7.6 BASES T LCO The OPERABILITY of the CST is determined by maintaining the (continued) tank level at or above the minimum required level.

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

In MODE 5 or 6. the CST is not required because the AFW System is not required.

ACTIONS A.1 and A.2 If the CST level is not within limits, the OPERABILITY of the backup supply should be verified by administrative means within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months and once every 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months thereafter.

OPERABILITY of the backup feedwater supply must include verification that the flow paths from the backup water supply to the AFW pumps are OPERABLE, and that the backup supply has the required volume of water available. The CST must be restored to OPERABLE status within 7 days, because the backup supply may be performing this function in addition to its normal functions. The 4 hour4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months Completion Time is reasonable, based on operating experience, to verify the OPERABILITY of the backup water supply. The 7 day Completion Time is reasonable. based on an OPERABLE backup water supply being available, and the low probability of an event occurring during this time period requiring the CST.

B.1 and B.2 If the CST 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

-furs. and in MODE 4. without reliance on the The steam

-genera or or ea ov-- within hours. allowed Completion Times are reasonable, base on operating experience, to reach the required unit conditions from full power conditions in an orderly manner and without challenging unit systems.

(continued)

WOG STS 8 3.7-34 Rev 1. 04/07/95

ULNRC-05459, Application for Amendment to Facility Operating License No. NPF-30, Adoption of Industry Travelers TSTF-247-A and TSTF-352-A

Contents

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7.1 REFERENCES

1.0 DESCRIPTION

2.0 PROPOSED CHANGE

3.0 BACKGROUND

4.0 TECHNICAL ANALYSIS

6.0 ENVIRONMENTAL CONSIDERATION

7.1 REFERENCES

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ULNRC-05459, Application for Amendment to Facility Operating License No. NPF-30, Adoption of Industry Travelers TSTF-247-A and TSTF-352-A

Text

7.1 REFERENCES

1.0 DESCRIPTION

2.0 PROPOSED CHANGE

3.0 BACKGROUND

4.0 TECHNICAL ANALYSIS

6.0 ENVIRONMENTAL CONSIDERATION

7.1 REFERENCES

Contact:

Description:

Description:

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