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PRIORITY RushDISPOSITION OF THE ORIGINAIDOCUMENT WILL BE TOTHE TRANSMITTAL SIGNATURE UNLESS RECIPIENT ISOTHERWISE IDENTIFIED BELOW

1) 01834 CNS C/R DWGS. SSA CN02OP2) 02049 C M MISENHEIMER EC081

3) 02124 R 0 SHARPE AREVA NP INC.

4) 02310 CNS CHEMISTRY HI-RI CN03CH

5) 02467 ELECT. LICENSING LIBRARY ECO50

6) 02835 E G WAGNER CN03SE

7) 03200 T G POETZSCH CN03SE

8-03759-US-NUCREG-WASHINGTONTDC/

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10) 03833 CNS COMPL FILE (ORIG)X CN01RC

11) 03945 OPS TRAINING CT01A

12) 04446 M E HENSHAW ECO8H13) 04490 C T KIKER CT01A

14) 04552 L E HAYNES EC07F

15) 05160 P T VU MG01RC

Duke EnergyDOCUMENT TRANSMITTAL FORM

REFERENCE

CATAWBA NUCLEAR STATION

SELECTED LICENSEE COMMITMENTS

Page 2 of 3

Date: 04/23/12

Document Transmittal #: DUK121140043

QA CONDITION D Yes * No

OTHER ACKNOWLEDGEMENT REQUIRED * YesIF CA OR OTHER ACKNOWLEDGEMENT REQUIRED, PLEASE

ACKNOWLEDGE RECEIPT BY RETURNING THIS FORM TO:

Duke Energy4800 Concord RoadDocument ManagementCN04DMYork, South Carolina 29745

Rec'd By

Date

DOCUMENT NO QA COND REV #/ DATE DISTR CODE 1 2 3 4 5 6 7 10 11 12 13 14 15 TOTALF I- i F I T I F ± -I i F ~------1 ± F

LOES (4 PAGES)

SECTION 16.7-9NANA

050 04/16/12007 04/16/19

CADM-03 V2 vi V1 V1 V1 V1 V1 V10 V1 x V26 vl V1 V1 V1 72

REMARKS: PLEASE REFER TO THE ATTACHED MEMO FOR FILING INSTRUCTIONS J R MORRIS

VICE PRESIDENT

CATAWBA NUCLEAR STATION

BY:

K BYERS CN01RC KB/RJA

SDuke DUKE ENERGY CORPORATIONCatawba Nuclear Station

SEnergy ,4800 Concord Rd.York, SC 29745

April 16, 2012

Re: Catawba Nuclear StationSelected Licensee Commitments ManualRevision Dates: 04/11/2012

Attached are revisions to the Catawba Nuclear Station Selected LicenseeCommitments Manual. Please remove and replace the following pages:

REMOVE THESE PAGES INSERT THESE PAGES

LIST OF EFFECTIVE SECTIONS

Pages 1 through 4Revision 49

Pages 1 through 4Revision 50

TAB 16.7

SLC 16.7-9Revision 6

SLC 16.7-9Revision 7

If you have any questions concerning the contents of this package update,contact Kristi Byers at (803)701-3758.

Manager, Regulatory Compliance

Attachment

www. duke-energy. corn

UPDATE INSTRUCTIONS FOR CATAWBA SELECTED LICENSEE COMMITMENTS (SLC)MANUAL

Please update your copy of the Catawba SLC Manual as follows:

Remove Insert

List of Effective Sections, Revision 49 List of Effective Sections, Revision 50

16.7-9, Revision 6 16.7-9, Revision 7

LIST OF EFFECTIVE SECTIONS

SECTION

TABLE OF CONTENTS

16.1

16.2

16.3

16.5-1

16.5-2

16.5-3

16.5-4

16.5-5

16.5-6

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Catawba Units 1 and 2 Page 2 Revision 50

LIST OF EFFECTIVE SECTIONS

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16.9-13

16.9-14

16.9-15

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Catawba Units 1 and 2 Page 4 Revision 50

SSS16.7-9

16.7 INSTRUMENTATION

16.7-9 Standby Shutdown System (SSS)

COMMITMENT

APPLICABILITY:

The SSS shall be FUNCTIONAL.

MODES 1, 2, and 3.

REMEDIAL ACTIONS

k Ir\~T*I~-------------------------------- Iv IJI --------------------------------------------------------SLC 16.2.3 is not applicable.

CONDITION REQUIRED ACTION COMPLETION TIME

A. SSS non-functional. A.1 Restore SSS to 7 daysFUNCTIONAL status.

B. Total accumulative B.1 Declare the standby ImmediatelyLEAKAGE from makeup pump non-unidentified LEAKAGE, functional and enteridentified LEAKAGE, Condition A.and reactor coolantpump seal LEAKAGE >20 gpm.

C. More than one cell in a C.1 Enter Condition A. Immediately24-Volt battery bank is <1.36 volts on floatcharge with no othercells jumpered.

D. Required Action and D.1 Be in MODE 3. 6 hoursassociated CompletionTime of Condition A not ANDmet.

D.2 Be in MODE 4. 12 hours

Catawba Units 1 and 2 16.7-9-1 Revision 7

SSS16.7-9

TESTING REQUIREMENTS

TEST FREQUENCY

TR 16.7-9-1 Verify that the electrolyte level of each SSS diesel 7 daysstarting 24-Volt battery is > the low mark and < the highmark.

TR 16.7-9-2 Verify that the overall SSS diesel starting 24-Volt battery 7 daysvoltage is > 24 volts on float charge.

TR 16.7-9-3 Verify that the requirements of SLC 16.9-21 are met and 7 daysthe boron concentration in the storage pool is > theminimum specified in the COLR.

TR 16.7-9-4 Verify the fuel level in the SSS diesel generator fuel 31 daysstorage tank is > 67 inches.

TR 16.7-9-5 Verify the SSS diesel generator starts from ambient 31 daysconditions and operates for > 30 minutes at > 700 kW.

TR 16.7-9-6 Verify that the electrolyte level of each SSS 250/125-Volt 31 daysbattery is above the plates.

TR 16.7-9-7 Verify the total SSS 250/125-Volt battery terminal voltage 31 daysis > 258/129 volts on float charge.

TR 16.7-9-8 Perform CHANNEL CHECK of each SSS 31 daysinstrumentation device.

TR 16.7-9-9 Verify the fuel oil properties of new and stored fuel oil for In accordance withthe SSS diesel generator are tested in accordance with, the Diesel Fuel Oiland maintained within the limits of, the Diesel Fuel Oil Testing ProgramTesting Program.

TR 16.7-9-10 Verify that the SSS diesel starting 24-Volt battery 92 days

individual cell voltage is > 1.36 volts on float charge.

(continued)

Catawba Units 1 and 2 16.7-9-2 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-11 Verify that the Standby Makeup Pump's developed head 92 daysat the test flow point is > the required developed head, inaccordance with the Inservice Testing Program.

TR 16.7-9-12 Verify that the specific gravity of the SSS 250/125-Volt 92 daysbattery is appropriate for continued service of the battery.

TR 16.7-9-13 Subject the SSS diesel generator to an inspection in 18 monthsaccordance with procedures prepared in conjunction withits manufacturer's recommendations for the class ofservice.

TR 16.7-9-14 Verify that the SSS diesel starting 24-Volt batteries, cell 18 monthsplates, and battery racks show no visual indication ofphysical damage or abnormal deterioration.

TR 16.7-9-15 Verify that the SSS diesel starting 24-Volt battery-to- 18 monthsbattery and terminal connections are clean, tight, andfree of corrosion.

TR 16.7-9-16 Verify that the SSS 250/125-Volt batteries, cell plates, 18 monthsand battery racks show no visual indications of physicaldamage or abnormal deterioration.

TR 16.7-9-17 Verify that the SSS 250/125-Volt battery-to-battery and 18 monthsterminal connections are clean, tight, free of corrosion,and coated with anti-corrosion material.

TR 16.7-9-18 Verify that the steam turbine driven auxiliary feedwater 18 monthspump and controls from the Standby Shutdown Facilityfunction as designed from the SSS.

TR 16.7-9-19 Perform CHANNEL CALIBRATION of each SSS 18 months

instrumentation device.

(continued)

Catawba Units 1 and 2 16.7-9-3 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-20 Verify proper installation of pressurizer insulation. 18 months

TR 16.7-9-21 Verify pressurizer heaters powered from the SSS have a 18 monthscapacity of > 65 kW.

BASES The SSS is designed to mitigate the consequences of certain postulatedfire, security, and station blackout incidents by providing capability tomaintain MODE 3 conditions and by controlling and monitoring vitalsystems from locations external to the main control room. This capabilityis consistent with the requirements of 10 CFR Part 50, Appendix R,NUREG-0800, Section 9.5-1, and Appendix A to Branch TechnicalPosition APSCB 9.5-1.

The TESTING REQUIREMENTS ensure that the SSS systems andcomponents are capable of performing their intended functions. Therequired level in the SSS diesel generator fuel storage tank ensuressufficient fuel for 72 hours uninterrupted operation. It is assumed that,within 72 hours, either offsite power can be restored or additional fuel canbe added to the storage tank.

Although the standby makeup pump is not nuclear safety related and wasnot designed according to ASME Code requirements, it is tested quarterlyto ensure its FUNCTIONALITY. The TESTING REQUIREMENTconcerning the standby makeup pump water supply ensures that anadequate water volume is available to supply the pump continuously for72 hours.

Total accumulative LEAKAGE is calculated in the NC System LeakageCalculation procedure as identified + unidentified + seal leakoff(References 2 and 3). The REMEDIAL ACTION limit of 20 gpm totalaccumulative LEAKAGE provides additional margin to allow forinstrument inaccuracy, and for the predicted increase in seal leakoff ratedue to heatup of the reactor coolant pump seal injection water supplytemperature following the SSS event (due to spent fuel pool heatup).Following the increase in seal injection temperature, the standby makeuppump flow of 26 gpm is sufficient to provide in excess of this totalaccumulative LEAKAGE, thereby assuring that reactor coolant systeminventory is maintained at MODE 3 conditions. The supporting evaluationis provided in CNC-1223.04-00-0072 (Ref. 4).

A visual inspection of the diesel starting 24-volt batteries, cell plates, andbattery racks provides an indication of physical damage or abnormaldeterioration that could potentially degrade battery performance. Since

Catawba Units 1 and 2 16.7-9-4 Revision 7

SSS16.7-9

BASES (continued)

the battery cell jars are not transparent, a direct visual inspection of thecell plates cannot be performed. Instead, the cell plates are inspected forphysical damage and abnormal deterioration by: 1) visually inspectingthe jar sides of each cell for excessive bowing and/or deformation, and 2)visually inspecting the electrolyte of each cell for abnormal appearance.

Verifying individual cell voltage while on float charge for the SSS dieselstarting 24-Volt batteries ensures that each cell is capable of supportingits intended function. Float charge is the condition in which the charger issupplying the continuous charge required to overcome the internal lossesof a battery (or battery cell) and maintain the battery (or battery cell) in afully charged state. The battery cell voltage limit of 1.36 volts isconsistent with the nominal design voltage of the battery and is based onthe manufacturer's recommended minimum float charge voltage for afully charged cell with adequate capacity. The battery is designed andsized with a capacity margin sufficient to allow up to one cell per batterybank to be fully degraded with a voltage < 1.36 volts assuming that nocells are jumpered out. The battery sizing calculations account for onedegraded cell per battery bank by assuming the degraded cells undergoa worst case polarity reversal during SSS diesel starting.

Verification of proper installation of pressurizer insulation ensures thatpressurizer heat losses during an SSS event do not exceed the capacityof the pressurizer heaters powered from the SSS.

Testing of the pressurizer heater capacity ensures the full capacity of theheaters is available to maintain a steam bubble in the pressurizer duringan SSS event.

REFERENCES 1. Letter from NRC to Gary R. Peterson, Duke, Issuance ofImproved Technical Specifications Amendments for Catawba,September 30, 1998.

2. PT/1(2)/A/4150/001 D, NC System Leakage Calculation.

3. PT/1 (2)/A/4150/O011, Manual NC Leakage Calculation.

4. CNC-1223.04-00-0072, Reactor Coolant Pumps No. 1 SealLeakoff Annunciator Alarm Setpoint for Unit 1 and Unit 2.

5. CNS-1560.SS-00-0001, Design Basis Specification for theStandby Shutdown Facility.

6. Catawba Technical Specification Amendments 206/200, July10, 2003.

7. Catawba UFSAR, Section 18.2.4.

Catawba. Units 1 and 2 16.7-9-5 Revision 7

SSS16.7-9

REFERENCES (continued)

8. Catawba License Renewal Commitments, CNS-1274.00-00-0016, Section 4.5.

Catawba Units 1 and 2 16.7-9-6 Revision 7

SDuke DUKE ENERGY CORPORATIONCatawba Nuclear Station

Energy® 4800 Concord Rd.York, SC 29745

April 16, 2012

Re: Catawba Nuclear StationSelected Licensee Commitments ManualRevision Dates: 04/11/2012

Attached are revisions to the Catawba Nuclear Station Selected LicenseeCommitments Manual. Please remove and replace the following pages:

REMOVE THESE PAGES INSERT THESE PAGES

LIST OF EFFECTIVE SECTIONS

Pages 1 through 4Revision 49

Pages 1 through 4Revision 50

TAB 16.7

SLC 16.7-9Revision 6

SLC 16.7-9Revision 7

If you have any questions concerning the contents of this package update,contact Kristi Byers at (803)701-3758.

Manager, Regulatory Compliance

Attachment

www. duke-energy. com

UPDATE INSTRUCTIONS FOR CATAWBA SELECTED LICENSEE COMMITMENTS (SLC)MANUAL

Please update your copy of the Catawba SLC Manual as follows:

Remove Insert

List of Effective Sections, Revision 49 List of Effective Sections, Revision 50

16.7-9, Revision 6 16.7-9, Revision 7

LIST OF EFFECTIVE SECTIONS

SECTION

TABLE OF CONTENTS

16.1

16.2

16.3

16.5-1

16.5-2

16.5-3

16.5-4

16.5-5

16.5-6

16.5-7

16.5-8

16.5-9

16.5-10

16.6-1

16.6-2

16.6-3

16.6-4

16.6-5

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08/27/08

08/21/09

08/21/09

02/20/12

02/20/04

10/09/02

01/28/10

08/21/09

10/09/02

12/22/08

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10/09/02

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08/21/09

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08/21/09

Catawba Units 1 and 2 Page 1 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.7-6

16.7-7

16.7-8

16.7-9

16.7-10

16.7-11

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04/11/12

10/24/11

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08/21/09

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Catawba Units 1 and 2 Page 2 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.9-9

16.9-10

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16.9-13

16.9-14

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16.9-16

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Catawba Units 1 and 2 Page 3 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

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16.11-9

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Catawba Units 1 and 2 Page 4 Revision 50

SSS16.7-9

16.7 INSTRUMENTATION

16.7-9 Standby Shutdown System (SSS)

COMMITMENT

APPLICABILITY:

The SSS shall be FUNCTIONAL.

MODES 1, 2, and 3.

REMEDIAL ACTIONS

k I f%,"Jl• I"j•------------ ------------------------- V UI r ---------------------------------------------------------

SLC 16.2.3 is not applicable.

CONDITION REQUIRED ACTION COMPLETION TIME

A. SSS non-functional. A.1 Restore SSS to 7 daysFUNCTIONAL status.

B. Total accumulative 8.1 Declare the standby ImmediatelyLEAKAGE from makeup pump non-unidentified LEAKAGE, functional and enteridentified LEAKAGE, Condition A.and reactor coolantpump seal LEAKAGE >20 gpm.

C. More than one cell in a C.1 Enter Condition A. Immediately24-Volt battery bank is <1.36 volts on floatcharge with no othercells jumpered.

D. Required Action and D.1 Be in MODE 3. 6 hoursassociated CompletionTime of Condition A not ANDmet.

D.2 Be in MODE 4. 12 hours

Catawba Units 1 and 2 16.7-9-1 Revision 7

SSS16.7-9

TESTING REQUIREMENTS

TEST FREQUENCY

TR 16.7-9-1 Verify that the electrolyte level of each SSS diesel 7 daysstarting 24-Volt battery is > the low mark and < the highmark.

TR 16.7-9-2 Verify that the overall SSS diesel starting 24-Volt battery 7 daysvoltage is > 24 volts on float charge.

TR 16.7-9-3 Verify that the requirements of SLC 16.9-21 are met and 7 daysthe boron concentration in the storage pool is > theminimum specified in the COLR.

TR 16.7-9-4 Verify the fuel level in the SSS diesel generator fuel 31 daysstorage tank is > 67 inches.

TR 16.7-9-5 Verify the SSS diesel generator starts from ambient 31 daysconditions and operates for > 30 minutes at > 700 kW.

TR 16.7-9-6 Verify that the electrolyte level of each SSS 250/125-Volt 31 daysbattery is above the plates.

TR 16.7-9-7 Verify the total SSS 250/125-Volt battery terminal voltage 31 daysis > 258/129 volts on float charge.

TR 16.7-9-8 Perform CHANNEL CHECK of each SSS 31 daysinstrumentation device.

TR 16.7-9-9 Verify the fuel oil properties of new and stored fuel oil for In accordance withthe SSS diesel generator are tested in accordance with, the Diesel Fuel Oiland maintained within the limits of, the Diesel Fuel Oil Testing ProgramTesting Program.

TR 16.7-9-10 Verify that the SSS diesel starting 24-Volt battery 92 days

individual cell voltage is > 1.36 volts on float charge.

(continued)

Catawba Units I and 2 16.7-9-2 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-11 Verify that the Standby Makeup Pump's developed head 92 daysat the test flow point is > the required developed head, inaccordance with the Inservice Testing Program.

TR 16.7-9-12 Verify that the specific gravity of the SSS 250/125-Volt 92 daysbattery is appropriate for continued service of the battery.

TR 16.7-9-13 Subject the SSS diesel generator to an inspection in 18 monthsaccordance with procedures prepared in conjunction withits manufacturer's recommendations for the class ofservice.

TR 16.7-9-14 Verify that the SSS diesel starting 24-Volt batteries, cell 18 monthsplates, and battery racks show no visual indication ofphysical damage or abnormal deterioration.

TR 16.7-9-15 Verify that the SSS diesel starting 24-Volt battery-to- 18 monthsbattery and terminal connections are clean, tight, andfree of corrosion.

TR 16.7-9-16 Verify that the SSS 250/125-Volt batteries, cell plates, 18 monthsand battery racks show no visual indications of physicaldamage or abnormal deterioration.

TR 16.7-9-17 Verify that the SSS 250/125-Volt battery-to-battery and 18 monthsterminal connections are clean, tight, free of corrosion,and coated with anti-corrosion material.

TR 16.7-9-18 Verify that the steam turbine driven auxiliary feedwater 18 monthspump and controls from the Standby Shutdown Facilityfunction as designed from the SSS.

TR 16.7-9-19 Perform CHANNEL CALIBRATION of each SSS 18 months

instrumentation device.

(continued)

Catawba Units 1 and 2 16.7-9-3 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-20 Verify proper installation of pressurizer insulation. 18 months

TR 16.7-9-21 Verify pressurizer heaters powered from the SSS have a 18 monthscapacity of > 65 kW.

BASES The SSS is designed to mitigate the consequences of certain postulatedfire, security, and station blackout incidents by providing capability tomaintain MODE 3 conditions and by controlling and monitoring vitalsystems from locations external to the main control room. This capabilityis consistent with the requirements of 10 CFR Part 50, Appendix R,NUREG-0800, Section 9.5-1, and Appendix A to Branch TechnicalPosition APSCB 9.5-1.

The TESTING REQUIREMENTS ensure that the SSS systems andcomponents are capable of performing their intended functions. Therequired level in the SSS diesel generator fuel storage tank ensuressufficient fuel for 72 hours uninterrupted operation. It is assumed that,within 72 hours, either offsite power can be restored or additional fuel canbe added to the storage tank.

Although the standby makeup pump is not nuclear safety related and wasnot designed according to ASME Code requirements, it is tested quarterlyto ensure its FUNCTIONALITY. The TESTING REQUIREMENTconcerning the standby makeup pump water supply ensures that anadequate water volume is available to supply the pump continuously for72 hours.

Total accumulative LEAKAGE is calculated in the NC System LeakageCalculation procedure as identified + unidentified + seal leakoff(References 2 and 3). The REMEDIAL ACTION limit of 20 gpm totalaccumulative LEAKAGE provides additional margin to allow forinstrument inaccuracy, and for the predicted increase in seal leakoff ratedue to heatup of the reactor coolant pump seal injection water supplytemperature following the SSS event (due to spent fuel pool heatup).Following the increase in seal injection temperature, the standby makeuppump flow of 26 gpm is sufficient to provide in excess of this totalaccumulative LEAKAGE, thereby assuring that reactor coolant systeminventory is maintained at MODE 3 conditions. The supporting evaluationis provided in CNC-1223.04-00-0072 (Ref. 4).

A visual inspection of the diesel starting 24-volt batteries, cell plates, andbattery racks provides an indication of physical damage or abnormaldeterioration that could potentially degrade battery performance. Since

Catawba Units 1 and 2 16.7-9-4 Revision 7

SSS16.7-9

BASES (continued)

the battery cell jars are not transparent, a direct visual inspection of thecell plates cannot be performed. Instead, the cell plates are inspected forphysical damage and abnormal deterioration by: 1) visually inspectingthe jar sides of each cell for excessive bowing and/or deformation, and 2)visually inspecting the electrolyte of each cell for abnormal appearance.

Verifying individual cell voltage while on float charge for the SSS dieselstarting 24-Volt batteries ensures that each cell is capable of supportingits intended function. Float charge is the condition in which the charger issupplying the continuous charge required to overcome the internal lossesof a battery (or battery cell) and maintain the battery (or battery cell) in afully charged state. The battery cell voltage limit of 1.36 volts isconsistent with the nominal design voltage of the battery and is based onthe manufacturer's recommended minimum float charge voltage for afully charged cell with adequate capacity. The battery is designed andsized with a capacity margin sufficient to allow up to one cell per batterybank to be fully degraded with a voltage < 1.36 volts assuming that nocells are jumpered out. The battery sizing calculations account for onedegraded cell per battery bank by assuming the degraded cells undergoa worst case polarity reversal during SSS diesel starting.

Verification of proper installation of pressurizer insulation ensures thatpressurizer heat losses during an SSS event do not exceed the capacityof the pressurizer heaters powered from the SSS.

Testing of the pressurizer heater capacity ensures the full capacity of theheaters is available to maintain a steam bubble in the pressurizer duringan SSS event.

REFERENCES 1. Letter from NRC to Gary R. Peterson, Duke, Issuance ofImproved Technical Specifications Amendments for Catawba,September 30, 1998.

2. PT/1(2)/A/4150/001 D, NC System Leakage Calculation.

3. PT/1 (2)/A/4150/001 1, Manual NC Leakage Calculation.

4. CNC-1223.04-00-0072, Reactor Coolant Pumps No. 1 SealLeakoff Annunciator Alarm Setpoint for Unit 1 and Unit 2.

5. CNS-1560.SS-00-0001, Design Basis Specification for theStandby Shutdown Facility.

6. Catawba Technical Specification Amendments 206/200, July10, 2003.

7. Catawba UFSAR, Section 18.2.4.

Catawba. Units 1 and 2 16.7-9-5 Revision 7

SSS16.7-9

REFERENCES (continued)

8. Catawba License Renewal Commitments, CNS-1274.00-00-0016, Section 4.5.

Catawba Units 1 and 2 16.7-9-6 Revision 7

SDuke DUKE ENERGY CORPORATIONCatawba Nuclear Station

Energy, 4800 Concord Rd.York, SC 29745

April 16, 2012

Re: Catawba Nuclear StationSelected Licensee Commitments ManualRevision Dates: 04/11/2012

Attached are revisions to the Catawba Nuclear Station Selected LicenseeCommitments Manual. Please remove and replace the following pages:

REMOVE THESE PAGES INSERT THESE PAGES

LIST OF EFFECTIVE SECTIONS

Pages 1 through 4Revision 49

Pages 1 through 4Revision 50

TAB 16.7

SLC 16.7-9Revision 6

SLC 16.7-9Revision 7

If you have any questions concerning the contents of this package update,contact Kristi Byers at (803)701-3758.

Manager, Regulatory Compliance

Attachment

www. duke-energy, corn

UPDATE INSTRUCTIONS FOR CATAWBA SELECTED LICENSEE COMMITMENTS (SLC)MANUAL

Please update your copy of the Catawba SLC Manual as follows:

Remove Insert

List of Effective Sections, Revision 49 List of Effective Sections, Revision 50

16.7-9, Revision 6 16.7-9, Revision 7

LIST OF EFFECTIVE SECTIONS

SECTION

TABLE OF CONTENTS

16.1

16.2

16.3

16.5-1

16.5-2

16.5-3

16.5-4

16.5-5

16.5-6

16.5-7

16.5-8

16.5-9

16.5-10

16.6-1

16.6-2

16.6-3

16.6-4

16.6-5

16.7-1

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08/27/08

08/21/09

08/21/09

02/20/12

02/20/04

10/09/02

01/28/10

08/21/09

10/09/02

12/22/08

02/20/12

10/09/02

08/21/09

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08/21/09

08/21/09

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02/03/11

08/21/09

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LIST OF EFFECTIVE SECTIONS

SECTION

16.7-6

16.7-7

16.7-8

16.7-9

16.7-10

16.7-11

16.7-12

16.7-13

16.7-14

16.7-15

16.7-16

16.8-1

16.8-2

16.8-3

16.8-4

16.8-5

16.9-1

16.9-2

16.9-3

16.9-4

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16.9-6

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08/21/09

08/21/09

04/11/12

10/24/11

08/21/09

08/21/09

08/21/09

08/21/09

08/21/09

06/08/09

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10/24/06

11/05/07

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08/21/09

06/23/10

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I

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LIST OF EFFECTIVE SECTIONS

SECTION

16.9-9

16.9-10

16.9-11

16.9-12

16.9-13

16.9-14

16.9-15

16.9-16

16.9-17

16.9-18

16.9-19

16.9-20

16.9-21

16.9-22

16.9-23

16.9-24

16.9-25

16.9-26

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08/21/09

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10/09/02

10/09/02

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10/09/02

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16.11-3

Catawba Units 1 and 2 Page 3 Revision 50

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SECTION

16.11-4

16.11-5

16.11-6

16.11-7

16.11-8

16.11-9

16.11-10

16.11-11

16.11-12

16.11-13

16.11-14

16.11-15

16.11-16

16.11-17

16.11-18

16.11-19

16.11-20

16.11-21

16.12-1

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Catawba Units 1 and 2 Page 4 Revision 50

SSS16.7-9

16.7 INSTRUMENTATION

16.7-9 Standby Shutdown System (SSS)

COMMITMENT

APPLICABILITY:

The SSS shall be FUNCTIONAL.

MODES 1, 2, and 3.

REMEDIAL ACTIONS

-NOTE-SLC 16.2.3 is not applicable.

CONDITION REQUIRED ACTION COMPLETION TIME

A. SSS non-functional. A.1 Restore SSS to 7 daysFUNCTIONAL status.

B. Total accumulative B.1 Declare the standby ImmediatelyLEAKAGE from makeup pump non-unidentified LEAKAGE, functional and enteridentified LEAKAGE, Condition A.and reactor coolantpump seal LEAKAGE >20 gpm.

C. More than one cell in a C.1 Enter Condition A. Immediately24-Volt battery bank is <1.36 volts on floatcharge with no othercells jumpered.

D. Required Action and D.1 Be in MODE 3. 6 hoursassociated CompletionTime of Condition A not ANDmet.

D.2 Be in MODE 4. 12 hours

Catawba Units I and 2 16.7-9-1 Revision 7

SSS16.7-9

TESTING REQUIREMENTS

TEST FREQUENCY

TR 16.7-9-1 Verify that the electrolyte level of each SSS diesel 7 daysstarting 24-Volt battery is > the low mark and < the highmark.

TR 16.7-9-2 Verify that the overall SSS diesel starting 24-Volt battery 7 daysvoltage is > 24 volts on float charge.

TR 16.7-9-3 Verify that the requirements of SLC 16.9-21 are met and 7 daysthe boron concentration in the storage pool is > theminimum specified in the COLR.

TR 16.7-9-4 Verify the fuel level in the SSS diesel generator fuel 31 daysstorage tank is > 67 inches.

TR 16.7-9-5 Verify the SSS diesel generator starts from ambient 31 daysconditions and operates for > 30 minutes at > 700 kW.

TR 16.7-9-6 Verify that the electrolyte level of each SSS 250/125-Volt 31 daysbattery is above the plates.

TR 16.7-9-7 Verify the total SSS 250/125-Volt battery terminal voltage 31 daysis > 258/129 volts on float charge.

TR 16.7-9-8 Perform CHANNEL CHECK of each SSS 31 daysinstrumentation device.

TR 16.7-9-9 Verify the fuel oil properties of new and stored fuel oil for In accordance withthe SSS diesel generator are tested in accordance with, the Diesel Fuel Oiland maintained within the limits of, the Diesel Fuel Oil Testing ProgramTesting Program.

TR 16.7-9-10 Verify that the SSS diesel starting 24-Volt battery 92 days

individual cell voltage is > 1.36 volts on float charge.

(continued)

Catawba Units 1 and 2 16.7-9-2 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-11 Verify that the Standby Makeup Pump's developed head 92 daysat the test flow point is > the required developed head, inaccordance with the Inservice Testing Program.

TR 16.7-9-12 Verify that the specific gravity of the SSS 250/125-Volt 92 daysbattery is appropriate for continued service of the battery.

TR 16.7-9-13 Subject the SSS diesel generator to an inspection in 18 monthsaccordance with procedures prepared in conjunction withits manufacturer's recommendations for the class ofservice.

TR 16.7-9-14 Verify that the SSS diesel starting 24-Volt batteries, cell 18 monthsplates, and battery racks show no visual indication ofphysical damage or abnormal deterioration.

TR 16.7-9-15 Verify that the SSS diesel starting 24-Volt battery-to- 18 monthsbattery and terminal connections are clean, tight, andfree of corrosion.

TR 16.7-9-16 Verify that the SSS 250/125-Volt batteries, cell plates, 18 monthsand battery racks show no visual indications of physicaldamage or abnormal deterioration.

TR 16.7-9-17 Verify that the SSS 250/125-Volt battery-to-battery and 18 monthsterminal connections are clean, tight, free of corrosion,and coated with anti-corrosion material.

TR 16.7-9-18 Verify that the steam turbine driven auxiliary feedwater 18 monthspump and controls from the Standby Shutdown Facilityfunction as designed from the SSS.

TR 16.7-9-19 Perform CHANNEL CALIBRATION of each SSS 18 months

instrumentation device.

(continued)

Catawba Units 1 and 2 16.7-9-3 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-20 Verify proper installation of pressurizer insulation. 18 months

TR 16.7-9-21 Verify pressurizer heaters powered from the SSS have a 18 monthscapacity of > 65 kW.

BASES The SSS is designed to mitigate the consequences of certain postulatedfire, security, and station blackout incidents by providing capability tomaintain MODE 3 conditions and by controlling and monitoring vitalsystems from locations external to the main control room. This capabilityis consistent with the requirements of 10 CFR Part 50, Appendix R,NUREG-0800, Section 9.5-1, and Appendix A to Branch TechnicalPosition APSCB 9.5-1.

The TESTING REQUIREMENTS ensure that the SSS systems andcomponents are capable of performing their intended functions. Therequired level in the SSS diesel generator fuel storage tank ensuressufficient fuel for 72 hours uninterrupted operation. It is assumed that,within 72 hours, either offsite power can be restored or additional fuel canbe added to the storage tank.

Although the standby makeup pump is not nuclear safety related and wasnot designed according to ASME Code requirements, it is tested quarterlyto ensure its FUNCTIONALITY. The TESTING REQUIREMENTconcerning the standby makeup pump water supply ensures that anadequate water volume is available to supply the pump continuously for72 hours.

Total accumulative LEAKAGE is calculated in the NC System LeakageCalculation procedure as identified + unidentified + seal leakoff(References 2 and 3). The REMEDIAL ACTION limit of 20 gpm totalaccumulative LEAKAGE provides additional margin to allow forinstrument inaccuracy, and for the predicted increase in seal leakoff ratedue to heatup of the reactor coolant pump seal injection water supplytemperature following the SSS event (due to spent fuel pool heatup).Following the increase in seal injection temperature, the standby makeuppump flow of 26 gpm is sufficient to provide in excess of this totalaccumulative LEAKAGE, thereby assuring that reactor coolant systeminventory is maintained at MODE 3 conditions. The supporting evaluationis provided in CNC-1223.04-00-0072 (Ref. 4).

A visual inspection of the diesel starting 24-volt batteries, cell plates, andbattery racks provides an indication of physical damage or abnormaldeterioration that could potentially degrade battery performance. Since

Catawba Units 1 and 2 16.7-9-4 Revision 7

SSS16.7-9

BASES (continued)

the battery cell jars are not transparent, a direct visual inspection of thecell plates cannot be performed. Instead, the cell plates are inspected forphysical damage and abnormal deterioration by: 1) visually inspectingthe jar sides of each cell for excessive bowing and/or deformation, and 2)visually inspecting the electrolyte of each cell for abnormal appearance.

Verifying individual cell voltage while on float charge for the SSS dieselstarting 24-Volt batteries ensures that each cell is capable of supportingits intended function. Float charge is the condition in which the charger issupplying the continuous charge required to overcome the internal lossesof a battery (or battery cell) and maintain the battery (or battery cell) in afully charged state. The battery cell voltage limit of 1.36 volts isconsistent with the nominal design voltage of the battery and is based onthe manufacturer's recommended minimum float charge voltage for afully charged cell with adequate capacity. The battery is designed andsized with a capacity margin sufficient to allow up to one cell per batterybank to be fully degraded with a voltage < 1.36 volts assuming that nocells are jumpered out. The battery sizing calculations account for onedegraded cell per battery bank by assuming the degraded cells undergoa worst case polarity reversal during SSS diesel starting.

Verification of proper installation of pressurizer insulation ensures thatpressurizer heat losses during an SSS event do not exceed the capacityof the pressurizer heaters powered from the SSS.

Testing of the pressurizer heater capacity ensures the full capacity of theheaters is available to maintain a steam bubble in the pressurizer duringan SSS event.

REFERENCES 1. Letter from NRC to Gary R. Peterson, Duke, Issuance ofImproved Technical Specifications Amendments for Catawba,September 30, 1998.

2. PT/1(2)/A/4150/001D, NC System Leakage Calculation.

3. PT/1 (2)/A/4150/001 1, Manual NC Leakage Calculation.

4. CNC-1223.04-00-0072, Reactor Coolant Pumps No. 1 SealLeakoff Annunciator Alarm Setpoint for Unit 1 and Unit 2.

5. CNS-1560.SS-00-0001, Design Basis Specification for theStandby Shutdown Facility.

6. Catawba Technical Specification Amendments 206/200, July10, 2003.

7. Catawba UFSAR, Section 18.2.4.

Catawba. Units 1 and 2 16.7-9-5 Revision 7

SSS16.7-9

REFERENCES (continued)

8. Catawba License Renewal Commitments, CNS-1274.00-00-0016, Section 4.5.

Catawba Units 1 and 2 16.7-9-6 Revision 7

Duke ENERGY CORPORATIONCatawba Nuclear Station

Energy® 4800 Concord Rd.York, SC 29745

IApril 16, 2012

Re: Catawba Nuclear StationSelected Licensee Commitments ManualRevision Dates: 04/11/2012

Attached are revisions to the Catawba Nuclear Station Selected LicenseeCommitments Manual. Please remove and replace the following pages:

REMOVE THESE PAGES INSERT THESE PAGES

LIST OF EFFECTIVE SECTIONS

Pages 1 through 4Revision 49

Pages 1 through 4Revision 50

TAB 16.7

SLC 16.7-9Revision 6

SLC 16.7-9Revision 7

If you have any questions concerning the contents of this package update,contact Kristi Byers at (803)701-3758.

Manager, Regulatory Compliance

Attachment

www. duke-energy. corn

UPDATE INSTRUCTIONS FOR CATAWBA SELECTED LICENSEE COMMITMENTS (SLC)MANUAL

Please update your copy of the Catawba SLC Manual as follows:

Remove Insert

List of Effective Sections, Revision 49 List of Effective Sections, Revision 50

16.7-9, Revision 6 16.7-9, Revision 7

LIST OF EFFECTIVE SECTIONS

SECTION

TABLE OF CONTENTS

16.1

16.2

16.3

16.5-1

16.5-2

16.5-3

16.5-4

16.5-5

16.5-6

16.5-7

16.5-8

16.5-9

16.5-10

16.6-1

16.6-2

16.6-3

16.6-4

16.6-5

16.7-1

16.7-2

16.7-3

16.7-4

16.7-5

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03/05/12

08/27/08

08/21/09

08/21/09

02/20/12

02/20/04

10/09/02

01/28/10

08/21/09

10/09/02

12/22/08

02/20/12

10/09/02

08/21/09

08/21/09

08/21/09

08/21/09

02/03/11

02/03/11

08/21/09

08/21/09

Catawba Units 1 and 2 Page 1 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.7-6

16.7-7

16.7-8

16.7-9

16.7-10

16.7-11

16.7-12

16.7-13

16.7-14

16.7-15

16.7-16

16.8-1

16.8-2

16.8-3

16.8-4

16.8-5

16.9-1

16.9-2

16.9-3

16.9-4

16.9-5

16.9-6

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16.9-8

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REVISION DATE

08/21/09

08/21/09

08/21/09

04/11/12

10/24/11

08/21/09

08/21/09

08/21/09

08/21/09

08/21/09

06/08/09

08/21/09

02/20/12

10/24/06

11/05/07

08/21/09

10/24/11

10/24/11

02/03/11

08/21/09

06/23/10

08/21/09

08/21/09

08/21/09

.Catawba Units 1 and 2 Page 2 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.9-9

16.9-10

16.9-11

16.9-12

16.9-13

16.9-14

16.9-15

16.9-16

16.9-17

16.9-18

16.9-19

16.9-20

16.9-21

16.9-22

16.9-23

16.9-24

16.9-25

16.9-26

16.10-1

16.10-2

16.10-3

16.11-1

16.11-2

16.11-3

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08/21/09

08/21/09

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10/24/06

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10/09/02

06123/10

10/09/02

Catawba Units 1 and 2 Page 3 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.11-4

16.11-5

16.11-6

16.11-7

16.11-8

16.11-9

16.11-10

16.11-11

16.11-12

16.11-13

16.11-14

16.11-15

16.11-16

16.11-17

16.11-18

16.11-19

16.11-20

16.11-21

16.12-1

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10/09/02

Catawba Units 1 and 2 Page 4 Revision 50

SSS16.7-9

16.7 INSTRUMENTATION

16.7-9 Standby Shutdown System (SSS)

COMMITMENT

APPLICABILITY:

The SSS shall be FUNCTIONAL.

MODES 1, 2, and 3.

REMEDIAL ACTIONS

-NOTE-SLC 16.2.3 is not applicable.

CONDITION REQUIRED ACTION COMPLETION TIME

A. SSS non-functional. A.1 Restore SSS to 7 daysFUNCTIONAL status.

B. Total accumulative B.1 Declare the standby ImmediatelyLEAKAGE from makeup pump non-unidentified LEAKAGE, functional and enteridentified LEAKAGE, Condition A.and reactor coolantpump seal LEAKAGE >20 gpm.

C. More than one cell in a C.1 Enter Condition A. Immediately24-Volt battery bank is <1.36 volts on floatcharge with no othercells jumpered.

D. Required Action and D.1 Be in MODE 3. 6 hoursassociated CompletionTime of Condition A not ANDmet.

D.2 Be in MODE 4. 12 hours

Catawba Units 1 and 2 16.7-9-1 Revision 7

SSS16.7-9

TESTING REQUIREMENTS

TEST FREQUENCY

TR 16.7-9-1 Verify that the electrolyte level of each SSS diesel 7 daysstarting 24-Volt battery is > the low mark and < the highmark.

TR 16.7-9-2 Verify that the overall SSS diesel starting 24-Volt battery 7 daysvoltage is > 24 volts on float charge.

TR 16.7-9-3 Verify that the requirements of SLC 16.9-21 are met and 7 daysthe boron concentration in the storage pool is > theminimum specified in the COLR.

TR 16.7-9-4 Verify the fuel level in the SSS diesel generator fuel 31 daysstorage tank is > 67 inches.

TR 16.7-9-5 Verify the SSS diesel generator starts from ambient 31 daysconditions and operates for > 30 minutes at > 700 kW.

TR 16.7-9-6 Verify that the electrolyte level of each SSS 250/125-Volt 31 daysbattery is above the plates.

TR 16.7-9-7 Verify the total SSS 250/125-Volt battery terminal voltage 31 daysis > 258/129 volts on float charge.

TR 16.7-9-8 Perform CHANNEL CHECK of each SSS 31 daysinstrumentation device.

TR 16.7-9-9 Verify the fuel oil properties of new and stored fuel oil for In accordance withthe SSS diesel generator are tested in accordance with, the Diesel Fuel Oiland maintained within the limits of, the Diesel Fuel Oil Testing ProgramTesting Program.

TR 16.7-9-10 Verify that the SSS diesel starting 24-Volt battery 92 days

individual cell voltage is > 1.36 volts on float charge.

(continued)

Catawba Units 1 and 2 16.7-9-2 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-11 Verify that the Standby Makeup Pump's developed head 92 daysat the test flow point is > the required developed head, inaccordance with the Inservice Testing Program.

TR 16.7-9-12 Verify that the specific gravity of the SSS 250/125-Volt 92 daysbattery is appropriate for continued service of the battery.

TR 16.7-9-13 Subject the SSS diesel generator to an inspection in 18 monthsaccordance with procedures prepared in conjunction withits manufacturer's recommendations for the class ofservice.

TR 16.7-9-14 Verify that the SSS diesel starting 24-Volt batteries, cell 18 monthsplates, and battery racks show no visual indication ofphysical damage or abnormal deterioration.

TR 16.7-9-15 Verify that the SSS diesel starting 24-Volt battery-to- 18 monthsbattery and terminal connections are clean, tight, andfree of corrosion.

TR 16.7-9-16 Verify that the SSS 250/125-Volt batteries, cell plates, 18 monthsand battery racks show no visual indications of physicaldamage or abnormal deterioration.

TR 16.7-9-17 Verify that the SSS 250/125-Volt battery-to-battery and 18 monthsterminal connections are clean, tight, free of corrosion,and coated with anti-corrosion material.

TR 16.7-9-18 Verify that the steam turbine driven auxiliary feedwater 18 monthspump and controls from the Standby Shutdown Facilityfunction as designed from the SSS.

TR 16.7-9-19 Perform CHANNEL CALIBRATION of each SSS 18 months

instrumentation device.

(continued)

Catawba Units 1 and 2 16.7-9-3 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-20 Verify proper installation of pressurizer insulation. 18 months

TR 16.7-9-21 Verify pressurizer heaters powered from the SSS have a 18 monthscapacity of > 65 kW.

BASES The SSS is designed to mitigate the consequences of certain postulatedfire, security, and station blackout incidents by providing capability tomaintain MODE 3 conditions and by controlling and monitoring vitalsystems from locations external to the main control room. This capabilityis consistent with the requirements of 10 CFR Part 50, Appendix R,NUREG-0800, Section 9.5-1, and Appendix A to Branch TechnicalPosition APSCB 9.5-1.

The TESTING REQUIREMENTS ensure that the SSS systems andcomponents are capable of performing their intended functions. Therequired level in the SSS diesel generator fuel storage tank ensuressufficient fuel for 72 hours uninterrupted operation. It is assumed that,within 72 hours, either offsite power can be restored or additional fuel canbe added to the storage tank.

Although the standby makeup pump is not nuclear safety related and wasnot designed according to ASME Code requirements, it is tested quarterlyto ensure its FUNCTIONALITY. The TESTING REQUIREMENTconcerning the standby makeup pump water supply ensures that anadequate water volume is available to supply the pump continuously for72 hours.

Total accumulative LEAKAGE is calculated in the NC System LeakageCalculation procedure as identified + unidentified + seal leakoff(References 2 and 3). The REMEDIAL ACTION limit of 20 gpm totalaccumulative LEAKAGE provides additional margin to allow forinstrument inaccuracy, and for the predicted increase in seal leakoff ratedue to heatup of the reactor coolant pump seal injection water supplytemperature following the SSS event (due to spent fuel pool heatup).Following the increase in seal injection temperature, the standby makeuppump flow of 26 gpm is sufficient to provide in excess of this totalaccumulative LEAKAGE, thereby assuring that reactor coolant systeminventory is maintained at MODE 3 conditions. The supporting evaluationis provided in CNC-1223.04-00-0072 (Ref. 4).

A visual inspection of the diesel starting 24-volt batteries, cell plates, andbattery racks provides an indication of physical damage or abnormaldeterioration that could potentially degrade battery performance. Since

Catawba Units I and 2 16.7-9-4 Revision 7

SSS16.7-9

BASES (continued)

the battery cell jars are not transparent, a direct visual inspection of thecell plates cannot be performed. Instead, the cell plates are inspected forphysical damage and abnormal deterioration by: 1) visually inspectingthe jar sides of each cell for excessive bowing and/or deformation, and 2)visually inspecting the electrolyte of each cell for abnormal appearance.

Verifying individual cell voltage while on float charge for the SSS dieselstarting 24-Volt batteries ensures that each cell is capable of supportingits intended function. Float charge is the condition in which the charger issupplying the continuous charge required to overcome the internal lossesof a battery (or battery cell) and maintain the battery (or battery cell) in afully charged state. The battery cell voltage limit of 1.36 volts isconsistent with the nominal design voltage of the battery and is based onthe manufacturer's recommended minimum float charge voltage for afully charged cell with adequate capacity. The battery is designed andsized with a capacity margin sufficient to allow up to one cell per batterybank to be fully degraded with a voltage < 1.36 volts assuming that nocells are jumpered out. The battery sizing calculations account for onedegraded cell per battery bank by assuming the degraded cells undergoa worst case polarity reversal during SSS diesel starting.

Verification of proper installation of pressurizer insulation ensures thatpressurizer heat losses during an SSS event do not exceed the capacityof the pressurizer heaters powered from the SSS.

Testing of the pressurizer heater capacity ensures the full capacity of theheaters is available to maintain a steam bubble in the pressurizer duringan SSS event.

REFERENCES 1. Letter from NRC to Gary R. Peterson, Duke, Issuance ofImproved Technical Specifications Amendments for Catawba,September 30, 1998.

2. PT/1(2)/A/4150/001 D, NC System Leakage Calculation.

3. PT/1(2)/A/4150/0011, Manual NC Leakage Calculation.

4. CNC-1223.04-00-0072, Reactor Coolant Pumps No. 1 SealLeakoff Annunciator Alarm Setpoint for Unit 1 and Unit 2.

5. CNS-1560.SS-00-0001, Design Basis Specification for theStandby Shutdown Facility.

6. Catawba Technical Specification Amendments 206/200, July

10, 2003.

7. Catawba UFSAR, Section 18.2.4.

Catawba. Units 1 and 2 16.7-9-5 Revision 7

SSS16.7-9

REFERENCES (continued)

8. Catawba License Renewal Commitments, CNS-1274.00-00-0016, Section 4.5.

Catawba Units 1 and 2 16.7-9-6 Revision 7

DUKE ENERGY CORPORATIONCatawba Nuclear Station

Energy@ 4800 Concord Rd.York, SC 29745

I

April 16, 2012

Re: Catawba Nuclear StationSelected Licensee Commitments ManualRevision Dates: 04/11/2012

Attached are revisions to the Catawba Nuclear Station Selected LicenseeCommitments Manual. Please remove and replace the following pages:

REMOVE THESE PAGES INSERT THESE PAGES

LIST OF EFFECTIVE SECTIONS

Pages 1 through 4Revision 49

Pages 1 through 4Revision 50

TAB 16.7

SLC 16.7-9Revision 6

SLC 16.7-9Revision 7

If you have any questions concerning the contents of thiscontact Kristi Byers at (803)701-3758.

package update,

Manager, Regulatory Compliance

Attachment

www. duke-energy. corn

UPDATE INSTRUCTIONS FOR CATAWBA SELECTED LICENSEE COMMITMENTS (SLC)MANUAL

Please update your copy of the Catawba SLC Manual as follows:

Remove Insert

List of Effective Sections, Revision 49 List of Effective Sections, Revision 50

16.7-9, Revision 6 16.7-9, Revision 7

LIST OF EFFECTIVE SECTIONS

SECTION

TABLE OF CONTENTS

16.1

16.2

16.3

16.5-1

16.5-2

16.5-3

16.5-4

16.5-5

16.5-6

16.5-7

16.5-8

16.5-9

16.5-10

16.6-1

16.6-2

16.6-3

16.6-4

16.6-5

16.7-1

16.7-2

16.7-3

16.7-4

16.7-5

REVISION NUMBER

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REVISION DATE

03/05/12

08/27/08

08/21/09

08/21/09

02/20/12

02/20/04

10/09/02

01/28/10

08/21/09

10/09/02

12/22/08

02/20/12

10/09/02

08/21109

08/21/09

08/21/09

08/21/09

02/03/11

02/03/11

08/21/09

08/21/09

Catawba Units 1 and 2 Page 1 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.7-6

16.7-7

16.7-8

16.7-9

16.7-10

16.7-11

16.7-12

16.7-13

16.7-14

16.7-15

16.7-16

16.8-1

16.8-2

16.8-3

16.8-4

16.8-5

16.9-1

16.9-2

16.9-3

16.9-4

16.9-5

16.9-6

16.9-7

16.9-8

REVISION NUMBER

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4

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7

5

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7

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REVISION DATE

08/21/09

08/21/09

08/21/09

04/11/12

10/24/11

08/21/09

08/21/09

08/21/09

08/21/09

08/21/09

06/08/09

08/21/09

02/20/12

10/24/06

11/05/07

08/21/09

10/24/11

10/24/11

02/03/11

08/21/09

06/23/10

08/21/09

08/21/09

08/21/09

Catawba Units 1 and 2 Page 2 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.9-9

16.9-10

16.9-11

16.9-12

16.9-13

16.9-14

16.9-15

16.9-16

16.9-17

16.9-18

16.9-19

16.9-20

16.9-21

16.9-22

16.9-23

16.9-24

16.9-25

16.9-26

16.10-1

16.10-2

16.10-3

16.11-1

16.11-2

16.11-3

REVISION NUMBER

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08/21/09

08/21/09

08/21/09

08/21/09

09/25/06

08/21/09

08/21/09

10/09/02

10/09/02

02/20/12

10/09/02

10/09/02

08/21/09

10/24/11

10/24/06

08/21/09

03/05/12

08/21/09

10/24/06

08/21/09

10/09/02

06/23/10

10/09/02

Catawba Units 1 and 2 Page 3 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.11-4

16.11-5

16.11-6

16.11-7

16.11-8

16.11-9

16.11-10

16.11-11

16.11-12

16.11-13

16.11-14

16.11-15

16.11-16

16.11-17

16.11-18

16.11-19

16.11-20

16.11-21

16.12-1

16.13-1

16.13-2

16.13-3

16.13-4

REVISION NUMBER

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REVISION DATE

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10/09/02

Catawba Units 1 and 2 Page 4 Revision 50

SSS16.7-9

16.7 INSTRUMENTATION

16.7-9 Standby Shutdown System (SSS)

COMMITMENT

APPLICABILITY:

The SSS shall be FUNCTIONAL.

MODES 1, 2, and 3.

REMEDIAL ACTIONS

---------- ------------------------ N OTEE --------------------------------------------------------SLC 16.2.3 is not applicable.

CONDITION REQUIRED ACTION COMPLETION TIME

A. SSS non-functional. A.1 Restore SSS to 7 daysFUNCTIONAL status.

B. Total accumulative B.1 Declare the standby ImmediatelyLEAKAGE from makeup pump non-unidentified LEAKAGE, functional and enteridentified LEAKAGE, Condition A.and reactor coolantpump seal LEAKAGE >20 gpm.

C. More than one cell in a C.1 Enter Condition A. Immediately24-Volt battery bank is <1.36 volts on floatcharge with no othercells jumpered.

D. Required Action and D.1 Be in MODE 3. 6 hoursassociated CompletionTime of Condition A not ANDmet.

D.2 Be in MODE 4. 12 hours

Catawba Units I and 2 16.7-9-1 Revision 7

SSS16.7-9

TESTING REQUIREMENTS

TEST FREQUENCY

TR 16.7-9-1 Verify that the electrolyte level of each SSS diesel 7 daysstarting 24-Volt battery is > the low mark and < the highmark.

TR 16.7-9-2 Verify that the overall SSS diesel starting 24-Volt battery 7 daysvoltage is > 24 volts on float charge.

TR 16.7-9-3 Verify that the requirements of SLC 16.9-21 are met and 7 daysthe boron concentration in the storage pool is > theminimum specified in the COLR.

TR 16.7-9-4 Verify the fuel level in the SSS diesel generator fuel 31 daysstorage tank is > 67 inches.

TR 16.7-9-5 Verify the SSS diesel generator starts from ambient 31 daysconditions and operates for > 30 minutes at > 700 kW.

TR 16.7-9-6 Verify that the electrolyte level of each SSS 250/125-Volt 31 daysbattery is above the plates.

TR 16.7-9-7 Verify the total SSS 250/125-Volt battery terminal voltage 31 daysis > 258/129 volts on float charge.

TR 16.7-9-8 Perform CHANNEL CHECK of each SSS 31 daysinstrumentation device.

TR 16.7-9-9 Verify the fuel oil properties of new and stored fuel oil for In accordance withthe SSS diesel generator are tested in accordance with, the Diesel Fuel Oiland maintained within the limits of, the Diesel Fuel Oil Testing ProgramTesting Program.

TR 16.7-9-10 Verify that the SSS diesel starting 24-Volt battery 92 days

individual cell voltage is > 1.36 volts on float charge.

(continued)

Catawba Units 1 and 2 16.7-9-2 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-11 Verify that the Standby Makeup Pump's developed head 92 daysat the test flow point is > the required developed head, inaccordance with the Inservice Testing Program.

TR 16.7-9-12 Verify that the specific gravity of the SSS 250/125-Volt 92 daysbattery is appropriate for continued service of the battery.

TR 16.7-9-13 Subject the SSS diesel generator to an inspection in 18 monthsaccordance with procedures prepared in conjunction withits manufacturer's recommendations for the class ofservice.

TR 16.7-9-14 Verify that the SSS diesel starting 24-Volt batteries, cell 18 monthsplates, and battery racks show no visual indication ofphysical damage or abnormal deterioration.

TR 16.7-9-15 Verify that the SSS diesel starting 24-Volt battery-to- 18 monthsbattery and terminal connections are clean, tight, andfree of corrosion.

TR 16.7-9-16 Verify that the SSS 250/125-Volt batteries, cell plates, 18 monthsand battery racks show no visual indications of physicaldamage or abnormal deterioration.

TR 16.7-9-17 Verify that the SSS 250/125-Volt battery-to-battery and 18 monthsterminal connections are clean, tight, free of corrosion,and coated with anti-corrosion material.

TR 16.7-9-18 Verify that the steam turbine driven auxiliary feedwater 18 monthspump and controls from the Standby Shutdown Facilityfunction as designed from the SSS.

TR 16.7-9-19 Perform CHANNEL CALIBRATION of each SSS 18 months

instrumentation device.

(continued)

Catawba Units 1 and 2 16.7-9-3 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-20 Verify proper installation of pressurizer insulation. 18 months

TR 16.7-9-21 Verify pressurizer heaters powered from the SSS have a 18 monthscapacity of > 65 kW.

BASES The SSS is designed to mitigate the consequences of certain postulatedfire, security, and station blackout incidents by providing capability tomaintain MODE 3 conditions and by controlling and monitoring vitalsystems from locations external to the main control room. This capabilityis consistent with the requirements of 10 CFR Part 50, Appendix R,NUREG-0800, Section 9.5-1, and Appendix A to Branch TechnicalPosition APSCB 9.5-1.

The TESTING REQUIREMENTS ensure that the SSS systems andcomponents are capable of performing their intended functions. Therequired level in the SSS diesel generator fuel storage tank ensuressufficient fuel for 72 hours uninterrupted operation. It is assumed that,within 72 hours, either offsite power can be restored or additional fuel canbe added to the storage tank.

Although the standby makeup pump is not nuclear safety related and wasnot designed according to ASME Code requirements, it is tested quarterlyto ensure its FUNCTIONALITY. The TESTING REQUIREMENTconcerning the standby makeup pump water supply ensures that anadequate water volume is available to supply the pump continuously for72 hours.

Total accumulative LEAKAGE is calculated in the NC System LeakageCalculation procedure as identified + unidentified + seal leakoff(References 2 and 3). The REMEDIAL ACTION limit of 20 gpm totalaccumulative LEAKAGE provides additional margin to allow forinstrument inaccuracy, and for the predicted increase in seal leakoff ratedue to heatup of the reactor coolant pump seal injection water supplytemperature following the SSS event (due to spent fuel pool heatup).Following the increase in seal injection temperature, the standby makeuppump flow of 26 gpm is sufficient to provide in excess of this totalaccumulative LEAKAGE, thereby assuring that reactor coolant systeminventory is maintained at MODE 3 conditions. The supporting evaluationis provided in CNC-1223.04-00-0072 (Ref. 4).

A visual inspection of the diesel starting 24-volt batteries, cell plates, andbattery racks provides an indication of physical damage or abnormaldeterioration that could potentially degrade battery performance. Since

Catawba Units 1 and 2 16.7-9-4 Revision 7

SSS16.7-9

BASES (continued)

the battery cell jars are not transparent, a direct visual inspection of thecell plates cannot be performed. Instead, the cell plates are inspected forphysical damage and abnormal deterioration by: 1) visually inspectingthe jar sides of each cell for excessive bowing and/or deformation, and 2)visually inspecting the electrolyte of each cell for abnormal appearance.

Verifying individual cell voltage while on float charge for the SSS dieselstarting 24-Volt batteries ensures that each cell is capable of supportingits intended function. Float charge is the condition in which the charger issupplying the continuous charge required to overcome the internal lossesof a battery (or battery cell) and maintain the battery (or battery cell) in afully charged state. The battery cell voltage limit of 1.36 volts isconsistent with the nominal design voltage of the battery and is based onthe manufacturer's recommended minimum float charge voltage for afully charged cell with adequate capacity. The battery is designed andsized with a capacity margin sufficient to allow up to one cell per batterybank to be fully degraded with a voltage < 1.36 volts assuming that nocells are jumpered out. The battery sizing calculations account for onedegraded cell per battery bank by assuming the degraded cells undergoa worst case polarity reversal during SSS diesel starting.

Verification of proper installation of pressurizer insulation ensures thatpressurizer heat losses during an SSS event do not exceed the capacityof the pressurizer heaters powered from the SSS.

Testing of the pressurizer heater capacity ensures the full capacity of theheaters is available to maintain a steam bubble in the pressurizer duringan SSS event.

REFERENCES 1. Letter from NRC to Gary R. Peterson, Duke, Issuance ofImproved Technical Specifications Amendments for Catawba,September 30, 1998.

2. PT/1(2)/A/4150/001 D, NC System Leakage Calculation.

3. PT/1 (2)/A/4150/001 1, Manual NC Leakage Calculation.

4. CNC-1223.04-00-0072, Reactor Coolant Pumps No. 1 SealLeakoff Annunciator Alarm Setpoint for Unit 1 and Unit 2.

5. CNS-1 560.SS-00-0001, Design Basis Specification for theStandby Shutdown Facility.

6. Catawba Technical Specification Amendments 206/200, July

10, 2003.

7. Catawba UFSAR, Section 18.2.4.

Catawba. Units 1 and 2 16.7-9-5 Revision 7

SSS16.7-9

REFERENCES (continued)

8. Catawba License Renewal Commitments, CNS-1274.00-00-0016, Section 4.5.

Catawba Units 1 and 2 16.7-9-6 Revision 7

SDuke DUKE ENERGY CORPORATIONCatawba Nuclear Station

Energy® 4800 Concord Rd.York, SC 29745

I

April 16, 2012

Re: Catawba Nuclear StationSelected Licensee Commitments ManualRevision Dates: 04/11/2012

Attached are revisions to the Catawba Nuclear Station Selected LicenseeCommitments Manual. Please remove and replace the following pages:

REMOVE THESE PAGES INSERT THESE PAGES

LIST OF EFFECTIVE SECTIONS

Pages 1 through 4Revision 49

Pages 1 through 4Revision 50

TAB 16.7

SLC 16.7-9Revision 6

SLC 16.7-9Revision 7

If you have any questions concerning the contents of this package update,contact Kristi Byers at (803)701-3758.

Manager, Regulatory Compliance

Attachment

www. duke-energy. corn

UPDATE INSTRUCTIONS FOR CATAWBA SELECTED LICENSEE COMMITMENTS (SLC)MANUAL

Please update your copy of the Catawba SLC Manual as follows:

Remove Insert

List of Effective Sections, Revision 49 List of Effective Sections, Revision 50

16.7-9, Revision 6 16.7-9, Revision 7

LIST OF EFFECTIVE SECTIONS

SECTION

TABLE OF CONTENTS

16.1

16.2

16.3

16.5-1

16.5-2

16.5-3

16.5-4

16.5-5

16.5-6

16.5-7

16.5-8

16.5-9

16.5-10

16.6-1

16.6-2

16.6-3

16.6-4

16.6-5

16.7-1

16.7-2

16.7-3

16.7-4

16.7-5

REVISION NUMBER

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2

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REVISION DATE

03/05/12

08/27/08

08/21/09

08/21/09

02/20/12

02/20/04

10/09/02

01/28/10

08/21/09

10/09/02

12/22/08

02/20/12

10/09/02

08/21/09

08/21/09

08/21/09

08/21/09

02/03/11

02/03/11

08/21/09

08/21/09

Catawba Units 1 and 2 Page 1 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.7-6

16.7-7

16.7-8

16.7-9

16.7-10

16.7-11

16.7-12

16.7-13

16.7-14

16.7-15

16.7-16

16.8-1

16.8-2

16.8-3

16.8-4

16.8-5

16.9-1

16.9-2

16.9-3

16.9-4

16.9-5

16.9-6

16.9-7

16.9-8

REVISION NUMBER

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7

4

2

03

2

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0

3

2

1

2

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7

5

3

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REVISION DATE

08/21/09

08/21/09

08/21/09

04/11/12

10/24/11

08/21/09

08/21/09

08/21/09

08/21/09

08/21/09

06/08/09

08/21/09

02/20/12

10/24/06

11/05/07

08/21/09

10/24/11

10/24/11

02/03/11

08/21/09

06/23/10

08/21/09

08/21/09

08/21/09

Catawba Units 1 and 2 Page 2 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.9-9

16.9-10

16.9-11

16.9-12

16.9-13

16.9-14

16.9-15

16.9-16

16.9-17

16.9-18

16.9-19

16.9-20

16.9-21

16.9-22

16.9-23

REVISION NUMBER

3

REVISION DATE

08/21/09

08/21/09

08/21/09

08/21/09

08/21/09

09/25/06

08/21/09

08/21/09

10/09/02

10/09/02

02/20/12

10/09/02

10/09/02

08/21/09

10/24/11

10/24/06

08/21/09

03/05/12

08/21/09

10/24/06

08/21/09

10/09/02

06123/10

10/09/02

16.9-24

16.9-25

16.9-26

16.10-1

16.10-2

16.10-3

16.11-1

16.11-2

16.11-3

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Catawba Units 1 and 2 Page 3 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.11-4

16.11-5

16.11-6

16.11-7

16.11-8

16.11-9

16.11-10

16.11-11

16.11-12

16.11-13

16.11-14

16.11-15

16.11-16

16.11-17

16.11-18

16.11-19

16.11-20

16.11-21

16.12-1

16.13-1

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16.13-3

16.13-4

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10/09/02

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10/09/02

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03/20/03

10/09/02

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08/21/09

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10/09/02

Catawba Units 1 and 2 Page 4 Revision 50

SSS16.7-9

16.7 INSTRUMENTATION

16.7-9 Standby Shutdown System (SSS)

COMMITMENT

APPLICABILITY:

The SSS shall be FUNCTIONAL.

MODES 1, 2, and 3.

REMEDIAL ACTIONS

SLC ------------------------SLC 16.2.3 is not applicable.

r ---------------------------------------------------------

CONDITION REQUIRED ACTION COMPLETION TIME

A. SSS non-functional. A.1 Restore SSS to 7 daysFUNCTIONAL status.

B. Total accumulative B.1 Declare the standby ImmediatelyLEAKAGE from makeup pump non-unidentified LEAKAGE, functional and enteridentified LEAKAGE, Condition A.and reactor coolantpump seal LEAKAGE >20 gpm.

C. More than one cell in a C.1 Enter Condition A. Immediately24-Volt battery bank is <1.36 volts on floatcharge with no othercells jumpered.

D. Required Action and D.1 Be in MODE 3. 6 hoursassociated CompletionTime of Condition A not ANDmet.

D.2 Be in MODE 4. 12 hours

Catawba Units 1 and 2 16.7-9-1 Revision 7

SSS16.7-9

TESTING REQUIREMENTS

TEST FREQUENCY

TR 16.7-9-1 Verify that the electrolyte level of each SSS diesel 7 daysstarting 24-Volt battery is > the low mark and < the highmark.

TR 16.7-9-2 Verify that the overall SSS diesel starting 24-Volt battery 7 daysvoltage is > 24 volts on float charge.

TR 16.7-9-3 Verify that the requirements of SLC 16.9-21 are met and 7 daysthe boron concentration in the storage pool is > theminimum specified in the COLR.

TR 16.7-9-4 Verify the fuel level in the SSS diesel generator fuel 31 daysstorage tank is > 67 inches.

TR 16.7-9-5 Verify the SSS diesel generator starts from ambient 31 daysconditions and operates for > 30 minutes at > 700 kW.

TR 16.7-9-6 Verify that the electrolyte level of each SSS 250/125-Volt 31 daysbattery is above the plates.

TR 16.7-9-7 Verify the total SSS 250/125-Volt battery terminal voltage 31 daysis > 258/129 volts on float charge.

TR 16.7-9-8 Perform CHANNEL CHECK of each SSS 31 daysinstrumentation device.

TR 16.7-9-9 Verify the fuel oil properties of new and stored fuel oil for In accordance withthe SSS diesel generator are tested in accordance with, the Diesel Fuel Oiland maintained within the limits of, the Diesel Fuel Oil Testing ProgramTesting Program.

TR 16.7-9-10 Verify that the SSS diesel starting 24-Volt battery 92 days

individual cell voltage is > 1.36 volts on float charge.

(continued)

Catawba Units 1 and 2 16.7-9-2 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-11 Verify that the Standby Makeup Pump's developed head 92 daysat the test flow point is > the required developed head, inaccordance with the Inservice Testing Program.

TR 16.7-9-12 Verify that the specific gravity of the SSS 250/125-Volt 92 daysbattery is appropriate for continued service of the battery.

TR 16.7-9-13 Subject the SSS diesel generator to an inspection in 18 monthsaccordance with procedures prepared in conjunction withits manufacturer's recommendations for the class ofservice.

TR 16.7-9-14 Verify that the SSS diesel starting 24-Volt batteries, cell 18 monthsplates, and battery racks show no visual indication ofphysical damage or abnormal deterioration.

TR 16.7-9-15 Verify that the SSS diesel starting 24-Volt battery-to- 18 monthsbattery and terminal connections are clean, tight, andfree of corrosion.

TR 16.7-9-16 Verify that the SSS 250/125-Volt batteries, cell plates, 18 monthsand battery racks show no visual indications of physicaldamage or abnormal deterioration.

TR 16.7-9-17 Verify that the SSS 250/125-Volt battery-to-battery and 18 monthsterminal connections are clean, tight, free of corrosion,and coated with anti-corrosion material.

TR 16.7-9-18 Verify that the steam turbine driven auxiliary feedwater 18 monthspump and controls from the Standby Shutdown Facilityfunction as designed from the SSS.

TR 16.7-9-19 Perform CHANNEL CALIBRATION of each SSS 18 months

instrumentation device.

(continued)

Catawba Units 1 and 2 16.7-9-3 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-20 Verify proper installation of pressurizer insulation. 18 months

TR 16.7-9-21 Verify pressurizer heaters powered from the SSS have a 18 monthscapacity of > 65 kW.

BASES The SSS is designed to mitigate the consequences of certain postulatedfire, security, and station blackout incidents by providing capability tomaintain MODE 3 conditions and by controlling and monitoring vitalsystems from locations external to the main control room. This capabilityis consistent with the requirements of 10 CFR Part 50, Appendix R,NUREG-0800, Section 9.5-1, and Appendix A to Branch TechnicalPosition APSCB 9.5-1.

The TESTING REQUIREMENTS ensure that the SSS systems andcomponents are capable of performing their intended functions. Therequired level in the SSS diesel generator fuel storage tank ensuressufficient fuel for 72 hours uninterrupted operation. It is assumed that,within 72 hours, either offsite power can be restored or additional fuel canbe added to the storage tank.

Although the standby makeup pump is not nuclear safety related and wasnot designed according to ASME Code requirements, it is tested quarterlyto ensure its FUNCTIONALITY. The TESTING REQUIREMENTconcerning the standby makeup pump water supply ensures that anadequate water volume is available to supply the pump continuously for72 hours.

Total accumulative LEAKAGE is calculated in the NC System LeakageCalculation procedure as identified + unidentified + seal leakoff(References 2 and 3). The REMEDIAL ACTION limit of 20 gpm totalaccumulative LEAKAGE provides additional margin to allow forinstrument inaccuracy, and for the predicted increase in seal leakoff ratedue to heatup of the reactor coolant pump seal injection water supplytemperature following the SSS event (due to spent fuel pool heatup).Following the increase in seal injection temperature, the standby makeuppump flow of 26 gpm is sufficient to provide in excess of this totalaccumulative LEAKAGE, thereby assuring that reactor coolant systeminventory is maintained at MODE 3 conditions. The supporting evaluationis provided in CNC-1223.04-00-0072 (Ref. 4).

A visual inspection of the diesel starting 24-volt batteries, cell plates, andbattery racks provides an indication of physical damage or abnormaldeterioration that could potentially degrade battery performance. Since

Catawba Units 1 and 2 16.7-9-4 Revision 7

SSS16.7-9

BASES (continued)

the battery cell jars are not transparent, a direct visual inspection of thecell plates cannot be performed. Instead, the cell plates are inspected forphysical damage and abnormal deterioration by: 1) visually inspectingthe jar sides of each cell for excessive bowing and/or deformation, and 2)visually inspecting the electrolyte of each cell for abnormal appearance.

Verifying individual cell voltage while on float charge for the SSS dieselstarting 24-Volt batteries ensures that each cell is capable of supportingits intended function. Float charge is the condition in which the charger issupplying the continuous charge required to overcome the internal lossesof a battery (or battery cell) and maintain the battery (or battery cell) in afully charged state. The battery cell voltage limit of 1.36 volts isconsistent with the nominal design voltage of the battery and is based onthe manufacturer's recommended minimum float charge voltage for afully charged cell with adequate capacity. The battery is designed andsized with a capacity margin sufficient to allow up to one cell per batterybank to be fully degraded with a voltage < 1.36 volts assuming that nocells are jumpered out. The battery sizing calculations account for onedegraded cell per battery bank by assuming the degraded cells undergoa worst case polarity reversal during SSS diesel starting.

Verification of proper installation of pressurizer insulation ensures thatpressurizer heat losses during an SSS event do not exceed the capacityof the pressurizer heaters powered from the SSS.

Testing of the pressurizer heater capacity ensures the full capacity of theheaters is available to maintain a steam bubble in the pressurizer duringan SSS event.

REFERENCES 1. Letter from NRC to Gary R. Peterson, Duke, Issuance ofImproved Technical Specifications Amendments for Catawba,September 30, 1998.

2. PT/1(2)/A/4150/001 D, NC System Leakage Calculation.

3. PT/1 (2)/A/4150/001 1, Manual NC Leakage Calculation.

4. CNC-1223.04-00-0072, Reactor Coolant Pumps No. 1 SealLeakoff Annunciator Alarm Setpoint for Unit 1 and Unit 2.

5. CNS-1560.SS-00-0001, Design Basis Specification for theStandby Shutdown Facility.

6. Catawba Technical Specification Amendments 206/200, July

10, 2003.

7. Catawba UFSAR, Section 18.2.4.

Catawba. Units 1 and 2 16.7-9-5 Revision 7

SSS16.7-9

REFERENCES (continued)

8. Catawba License Renewal Commitments, CNS-1274.00-00-0016, Section 4.5.

Catawba Units 1 and 2 16.7-9-6 Revision 7

DUKE ENERGY CORPORATIONCatawba Nuclear Station

bEnergy® 4800 Concord Rd.York, SC 29745I

April 16, 2012

Re: Catawba Nuclear StationSelected Licensee Commitments ManualRevision Dates: 04/11/2012

Attached are revisions to the Catawba Nuclear Station Selected LicenseeCommitments Manual. Please remove and replace the following pages:

REMOVE THESE PAGES INSERT THESE PAGES

LIST OF EFFECTIVE SECTIONS

Pages 1 through 4Revision 49

Pages 1 through 4Revision 50

TAB 16.7

SLC 16.7-9Revision 6

SLC 16.7-9Revision 7

If you have any questions concerning the contents of this package update,contact Kristi Byers at (803)701-3758.

Manager, Regulatory Compliance

Attachment

www. duke-energy. corn

UPDATE INSTRUCTIONS FOR CATAWBA SELECTED LICENSEE COMMITMENTS (SLC)MANUAL

Please update your copy of the Catawba SLC Manual as follows:

Remove

List of Effective Sections, Revision 49

16.7-9, Revision 6

Insert

List of Effective Sections, Revision 50

16.7-9, Revision 7

LIST OF EFFECTIVE SECTIONS

SECTION

TABLE OF CONTENTS

.16.1

16.2

16.3

16.5-1

16.5-2

16.5-3

16.5-4

16.5-5

16.5-6

16.5-7

16.5-8

16.5-9

16.5-10

16.6-1

16.6-2

16.6-3

16.6-4

16.6-5

16.7-1

16.7-2

16.7-3

16.7-4

16.7-5

REVISION NUMBER

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REVISION DATE

03/05/12

08/27/08

08/21/09

08/21/09

02/20/12

02/20104

10/09/02

01/28/10

08/21/09

10/09/02

12/22/08

02/20/12

10/09/02

08/21/09

08/21109

08/21/09

08/21/09

02/03/11

02/03/11

08/21/09

08/21/09

Catawba Units 1 and 2 Page 1 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.7-6

16.7-7

16.7-8

16.7-9

16.7-10

16.7-11

16.7-12

16.7-13

16.7-14

16.7-15

16.7-16

16.8-1

16.8-2

16.8-3

REVISION NUMBER

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2

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4

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1

2

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2

1

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3

7

5

3

3

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REVISION DATE

08/21/09

08/21/09

08/21/09

04/11/12

10/24/11

08/21/09

08/21/09

08/21/09

08/21/09

08/21/09

06/08/09

08/21/09

02/20/12

10/24/06

11/05/07

08/21/09

10/24/11

10/24/11

02/03/11

08/21/09

06/23/10

08/21/09

08/21/09

08/21/09

16.8-4

16.8-5

16.9-1

16.9-2

16.9-3

16.9-4

16.9-5

16.9-6

16.9-7

16.9-8

Catawba Units 1 and 2 Page 2 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.9-9

16.9-10

16.9-11

16.9-12

16.9-13

16.9-14

16.9-15

16.9-16

16.9-17

16.9-18

16.9-19

16.9-20

16.9-21

16.9-22

16.9-23

16.9-24

16.9-25

16.9-26

16.10-1

16.10-2

16.10-3

16.11-1

16.11-2

16.11-3

REVISION NUMBER

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5

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REVISION DATE

08/21/09

08/21/09

08/21/09

08/21/09

08/21/09

09/25/06

08/21/09

08/21/09

10/09/02

10/09/02

02/20/12

10/09/02

10/09/02

08/21/09

10/24/11

10/24/06

08/21/09

03/05/12

08/21/09

10/24/06

08/21/09

10/09/02

06/23/10

10/09/02

Catawba Units 1 and 2 Page 3 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.11-4

16.11-5

16.11-6

16.11-7

16.11-8

16.11-9

16.11-10

16.11-11

16.11-12

16.11-13

16.11-14

16.11-15

16.11-16

16.11-17

16.11-18

16.11-19

16.11-20

16.11-21

16.12-1

16.13-1

16.13-2

16.13-3

16.13-4

REVISION NUMBER

1

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08/21/09

10/09/02

06/08/09

10/24/11

10/09/02

10/09/02

08/21/09

03/20/03

10/09/02

10/09/02

10/09/02

10/09/02

10/24/11

10/09/02

08/21/09

10/09/02

08/21/09

10/09/02

10/09/02

10/09/02

10/09/02

Catawba Units 1 and 2 Page 4 Revision 50

SSS16.7-9

16.7 INSTRUMENTATION

16.7-9 Standby Shutdown System (SSS)

COMMITMENT

APPLICABILITY:

The SSS shall be FUNCTIONAL.

MODES 1, 2, and 3.

REMEDIAL ACTIONS

------------------------------------ NOT E -------------------------------------------SLC 16.2.3 is not applicable.

CONDITION REQUIRED ACTION COMPLETION TIME

A. SSS non-functional. A.1 Restore SSS to 7 daysFUNCTIONAL status.

B. Total accumulative B.1 Declare the standby ImmediatelyLEAKAGE from makeup pump non-unidentified LEAKAGE, functional and enteridentified LEAKAGE, Condition A.and reactor coolantpump seal LEAKAGE >20 gpm.

C. More than one cell in a C.1 Enter Condition A. Immediately24-Volt battery bank is <1.36 volts on floatcharge with no othercells jumpered.

D. Required Action and D.1 Be in MODE 3. 6 hoursassociated CompletionTime of Condition A not ANDmet.

D.2 Be in MODE 4. 12 hours

Catawba Units 1 and 2 16.7-9-1 Revision 7

SSS16.7-9

TESTING REQUIREMENTS

TEST FREQUENCY

TR 16.7-9-1 Verify that the electrolyte level of each SSS diesel 7 daysstarting 24-Volt battery is > the low mark and < the highmark.

TR 16.7-9-2 Verify that the overall SSS diesel starting 24-Volt battery 7 daysvoltage is > 24 volts on float charge.

TR 16.7-9-3 Verify that the requirements of SLC 16.9-21 are met and 7 daysthe boron concentration in the storage pool is > theminimum specified in the COLR.

TR 16.7-9-4 Verify the fuel level in the SSS diesel generator fuel 31 daysstorage tank is > 67 inches.

TR 16.7-9-5 Verify the SSS diesel generator starts from ambient 31 daysconditions and operates for > 30 minutes at > 700 kW.

TR 16.7-9-6 Verify that the electrolyte level of each SSS 250/125-Volt 31 daysbattery is above 'the plates.

TR 16.7-9-7 Verify the total SSS 250/125-Volt battery terminal voltage 31 daysis > 258/129 volts on float charge.

TR 16.7-9-8 Perform CHANNEL CHECK of each SSS 31 daysinstrumentation device.

TR 16.7-9-9 Verify the fuel oil properties of new and stored fuel oil for In accordance withthe SSS diesel generator are tested in accordance with, the Diesel Fuel Oiland maintained within the limits of, the Diesel Fuel Oil Testing ProgramTesting Program.

TR 16.7-9-10 Verify that the SSS diesel starting 24-Volt battery 92 days

individual cell voltage is > 1.36 volts on float charge.

(continued)

Catawba Units I and 2 16.7-9-2 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-11 Verify that the Standby Makeup Pump's developed head 92 daysat the test flow point is > the required developed head, inaccordance with the Inservice Testing Program.

TR 16.7-9-12 Verify that the specific gravity of the SSS 250/125-Volt 92 daysbattery is appropriate for continued service of the battery.

TR 16.7-9-13 Subject the SSS diesel generator to an inspection in 18 monthsaccordance with procedures prepared in conjunction withits manufacturer's recommendations for the class ofservice.

TR 16.7-9-14 Verify that the SSS diesel starting 24-Volt batteries, cell 18 monthsplates, and battery racks show no visual indication ofphysical damage or abnormal deterioration.

TR 16.7-9-15 Verify that the SSS diesel starting 24-Volt battery-to- 18 monthsbattery and terminal connections are clean, tight, andfree of corrosion.

TR 16.7-9-16 Verify that the SSS 250/125-Volt batteries, cell plates, 18 monthsand battery racks show no visual indications of physicaldamage or abnormal deterioration.

TR 16.7-9-17 Verify that the SSS 250/125-Volt battery-to-battery and 18 monthsterminal connections are clean, tight, free of corrosion,and coated with anti-corrosion material.

TR 16.7-9-18 Verify that the steam turbine driven auxiliary feedwater 18 monthspump and controls from the Standby Shutdown Facilityfunction as designed from the SSS.

TR 16.7-9-19 Perform CHANNEL CALIBRATION of each SSS 18 months

instrumentation device.

(continued)

Catawba Units 1 and 2 16.7-9-3 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-20 Verify proper installation of pressurizer insulation. 18 months

TR 16.7-9-21 Verify pressurizer heaters powered from the SSS have a 18 monthscapacity of > 65 kW.

BASES The SSS is designed to mitigate the consequences of certain postulatedfire, security, and station blackout incidents by providing capability tomaintain MODE 3 conditions and by controlling and monitoring vitalsystems from locations external to the main control room. This capabilityis consistent with the requirements of 10 CFR Part 50, Appendix R,NUREG-0800, Section 9.5-1, and Appendix A to Branch TechnicalPosition APSCB 9.5-1.

The TESTING REQUIREMENTS ensure that the SSS systems andcomponents are capable of performing their intended functions. Therequired level in the SSS diesel generator fuel storage tank ensuressufficient fuel for 72 hours uninterrupted operation. It is assumed that,within 72 hours, either offsite power can be restored or additional fuel canbe added to the storage tank.

Although the standby makeup pump is not nuclear safety related and wasnot designed according to ASME Code requirements, it is tested quarterlyto ensure its FUNCTIONALITY.. The TESTING REQUIREMENTconcerning the standby makeup pump water supply ensures that anadequate water volume is available to supply the pump continuously for72 hours.

Total accumulative LEAKAGE is calculated in the NC System LeakageCalculation procedure as identified + unidentified + seal leakoff(References 2 and 3). The REMEDIAL ACTION limit of 20 gpm totalaccumulative LEAKAGE provides additional margin to allow forinstrument inaccuracy, and for the predicted increase in seal leakoff ratedue to heatup of the reactor coolant pump seal injection water supplytemperature following the SSS event (due to spent fuel pool heatup).Following the increase in seal injection temperature, the standby makeuppump flow of 26 gpm is sufficient to provide in excess of this totalaccumulative LEAKAGE, thereby assuring that reactor coolant systeminventory is maintained at MODE 3 conditions. The supporting evaluationis provided in CNC-1223.04-00-0072 (Ref. 4).

A visual inspection of the diesel starting 24-volt batteries, cell plates, andbattery racks provides an indication of physical damage or abnormaldeterioration that could potentially degrade battery performance. Since

Catawba Units 1 and 2 16.7-9-4 Revision 7

SSS16.7-9

BASES (continued)

the battery cell jars are not transparent, a direct visual inspection of thecell plates cannot be performed. Instead, the cell plates are inspected forphysical damage and abnormal deterioration by: 1) visually inspectingthe jar sides of each cell for excessive bowing and/or deformation, and 2)visually inspecting the electrolyte of each cell for abnormal appearance.

Verifying individual cell voltage while on float charge for the SSS dieselstarting 24-Volt batteries ensures that each cell is capable of supportingits intended function. Float charge is the condition in which the charger issupplying the continuous charge required to overcome the internal lossesof a battery (or battery cell) and maintain the battery (or battery cell) in afully charged state. The battery cell voltage limit of 1.36 volts isconsistent with the nominal design voltage of the battery and is based onthe manufacturer's recommended minimum float charge voltage for afully charged cell with adequate capacity. The battery is designed andsized with a capacity margin sufficient to allow up to one cell per batterybank to be fully degraded with a voltage < 1.36 volts assuming that nocells are jumpered out. The battery sizing calculations account for onedegraded cell per battery bank by assuming the degraded cells undergoa worst case polarity reversal during SSS diesel starting.

Verification of proper installation of pressurizer insulation ensures thatpressurizer heat losses during an SSS event do not exceed the capacityof the pressurizer heaters powered from the SSS.

Testing of the pressurizer heater capacity ensures the full capacity of theheaters is available to maintain a steam bubble in the pressurizer duringan SSS event.

REFERENCES 1. Letter from NRC to Gary R. Peterson, Duke, Issuance ofImproved Technical Specifications Amendments for Catawba,September 30, 1998.

2. PT/1(2)/A/4150/001D, NC System Leakage Calculation.

3. PT/1 (2)/A/4150/0011, Manual NC Leakage Calculation.

4. CNC-1223.04-00-0072, Reactor Coolant Pumps No. 1 SealLeakoff Annunciator Alarm Setpoint for Unit 1 and Unit 2.

5. CNS-1560.SS-00-0001, Design Basis Specification for theStandby Shutdown Facility.

6. Catawba Technical Specification Amendments 206/200, July10, 2003.

7. Catawba UFSAR, Section 18.2.4.

Catawba. Units 1 and 2 16.7-9-5 Revision 7

SSS16.7-9

REFERENCES (continued)

8. Catawba License Renewal Commitments, CNS-1274.00-00-0016, Section 4.5.

Catawba Units 1 and 2 16.7-9-6 Revision 7

Duke .DUKE ENERGY CORPORATIOND k Catawba Nuclear Station

rC EnergyD 4800 Concord Rd.York, SC 29745

I

April 16, 2012

Re: Catawba Nuclear StationSelected Licensee Commitments ManualRevision Dates: 04/11/2012

Attached are revisions to the Catawba Nuclear Station Selected LicenseeCommitments Manual. Please remove and replace the following pages:

REMOVE THESE PAGES INSERT THESE PAGES

LIST OF EFFECTIVE SECTIONS

Pages 1 through 4Revision 49

Pages 1 through 4Revision 50

TAB 16.7

SLC 16.7-9Revision 6

SLC 16.7-9Revision 7

If you have any questions concerning the contents of this package update,contact Kristi Byers at (803)701-3758.

Manager, Regulatory Compliance

Attachment

www. duke-energy. corn

UPDATE INSTRUCTIONS FOR CATAWBA SELECTED LICENSEE COMMITMENTS (SLC)MANUAL

Please update your copy of the Catawba SLC Manual as follows:

Remove Insert

List of Effective Sections, Revision 49 List of Effective Sections, Revision 50

16.7-9, Revision 6 16.7-9, Revision 7

LIST OF EFFECTIVE SECTIONS

SECTION

TABLE OF CONTENTS

16.1

16.2

16.3

16.5-1

16.5-2

16.5-3

16.5-4

16.5-5

16.5-6

16.5-7

16.5-8

16.5-9

16.5-10

16.6-1

16.6-2

16.6-3

16.6-4

16.6-5

16.7-1

16.7-2

16.7-3

16.7-4

16,7-5

REVISION NUMBER

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REVISION DATE

03/05/12

08/27/08

08/21/09

08/21/09

02/20/12

02/20/04

10/09/02

01/28/10

08/21/09

10/09/02

12/22/08

02/20/12

10/09/02

08/21/09

08/21/09

08/21/09

08/21/09

02/03/11

02/03/11

08/21/09

08/21/09

Catawba Units 1 and 2 Page 1 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.7-6

16.7-7

16.7-8

16.7-9

16.7-10

16.7-11

16.7-12

16.7-13

16.7-14

16.7-15

16.7-16

16.8-1

16.8-2

16.8-3

16.8-4

16.8-5

16.9-1

16.9-2

16.9-3

16.9-4

16.9-5

16.9-6

16.9-7

16.9-8

REVISION NUMBER

2

1

2

7

4

1

1

2

1

1

0

3

2

1

2

3

7

5

3

3

6

7

4

5

REVISION DATE

08/21/09

08/21/09

08/21/09

04/11/12

10/24/11

08/21/09

08/21/09

08/21/09

08/21/09

08/21/09

06/08/09

08/21/09

02/20/12

10/24/06

11/05/07

08/21/09

10/24/11

10/24/11

02/03/11

08/21/09

06/23/10

08/21/09

08/21/09

08/21/09

Catawba Units 1 and 2 Page 2 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.9-9

16.9-10

16.9-11

16.9-12

16.9-13

16.9-14

16.9-15

16.9-16

16.9-17

16.9-18

16.9-19

16.9-20

16.9-21

16.9-22

16.9-23

16.9-24

16.9-25

16.9-26

16.10-1

16.10-2

16.10-3

16.11-1

16.11-2

16.11-3

REVISION NUMBER

3

5

3

2

3

1

2

2

0

0

3

0

0

1

4

2

2

0

1

1

1

0

3

0

REVISION DATE

08/21/09

08/21/09

08/21/09

08/21/09

08/21/09

09/25/06

08/21/09

08/21/09

10/09/02

10/09/02

02/20/12

10/09/02

10/09/02

08/21/09

10/24/11

10/24/06

08/21/09

03/05/12

08/21/09

10/24/06

08/21/09

10/09/02

06/23/10

.10/09/02

Catawba Units 1 and 2 Page 3 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.11-4

16.1.1-5

16.11-6

16.11-7

16.11-8

16.11-9

16.11-10

16.11-11

16.11-12

16.11-13

16.11-14

16.11-15

16.11-16

16.11-17

16.11-18

16.11-19

16.11-20

16.11-21

16.12-1

16.13-1

16.13-2

16.13-3

16.13-4

REVISION NUMBER

1

0

1

6

0

0

1

1

0

0

0

0

1

0

1

0

0

0

0

0

Deleted

Deleted

0

REVISION DATE

08/21/09

10/09/02

06/08/09

10/24/11

10/09/02

10/09/02

08/21/09

03/20/03

10109/02

10/09/02

10/09/02

10/09/02

10124/11

10/09/02

08/21/09

10/09/02

08/21/09

10/09/02

10/09/02

10/09/02

10/09/02

Catawba Units 1 and 2 Page 4 Revision 50

SSS16.7-9

16.7 INSTRUMENTATION

16.7-9 Standby Shutdown System (SSS)

COMMITMENT

APPLICABILITY:

The SSS shall be FUNCTIONAL.

MODES 1, 2, and 3.

REMEDIAL ACTIONS

-NOTE.SLC 16.2.3 is not applicable.

CONDITION REQUIRED ACTION COMPLETION TIME

A. SSS non-functional. A.1 Restore SSS to 7 daysFUNCTIONAL status.

B. Total accumulative B.1 Declare the standby ImmediatelyLEAKAGE from makeup pump non-unidentified LEAKAGE, functional and enteridentified LEAKAGE, Condition A.and reactor coolantpump seal LEAKAGE >20 gpm.

C. More than one cell in a C.1 Enter Condition A. Immediately24-Volt battery bank is <1.36 volts on floatcharge with no othercells jumpered.

D. Required Action and D.1 Be in MODE 3. 6 hoursassociated CompletionTime of Condition A not ANDmet.

D.2 Be in MODE 4. 12 hours

Catawba Units 1 and 2 16.7-9-1 Revision 7

SSS16.7-9

TESTING REQUIREMENTS

TEST FREQUENCY

TR 16.7-9-1 Verify that the electrolyte level of each SSS diesel 7 daysstarting 24-Volt battery is > the low mark and < the highmark.

TR 16.7-9-2 Verify that the overall SSS diesel starting 24-Volt battery 7 daysvoltage is > 24 volts on float charge.

TR 16.7-9-3 Verify that the requirements of SLC 16.9-21 are met and 7 daysthe boron concentration in the storage pool is > theminimum specified in the COLR.

TR 16.7-9-4 Verify the fuel level in the SSS diesel generator fuel 31 daysstorage tank is > 67 inches.

TR 16.7-9-5 Verify the SSS diesel generator starts from ambient 31 daysconditions and operates for > 30 minutes at > 700 kW.

TR 16.7-9-6 Verify that the electrolyte level of each SSS 250/125-Volt 31 daysbattery is above the plates.

TR 16.7-9-7 Verify the total SSS 250/125-Volt battery terminal voltage 31 daysis > 258/129 volts on float charge.

TR 16.7-9-8 Perform CHANNEL CHECK of each SSS 31 daysinstrumentation device.

TR 16.7-9-9 Verify the fuel oil properties of new and stored fuel oil for In accordance withthe SSS diesel generator are tested in accordance with, the Diesel Fuel Oiland maintained within the limits of, the Diesel Fuel Oil Testing ProgramTesting Program.

TR 16.7-9-10 Verify that the SSS diesel starting 24-Volt battery 92 days

individual cell voltage is > 1.36 volts on float charge.

(continued)

Catawba Units I and 2 16.7-9-2 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-11 Verify that the Standby Makeup Pump's developed head 92 daysat the test flow point is > the required developed head, inaccordance with the Inservice Testing Program.

TR 16.7-9-12 Verify that the specific gravity of the SSS 250/125-Volt 92 daysbattery is appropriate for continued service of the battery.

TR 16.7-9-13 Subject the SSS diesel generator to an inspection in 18 monthsaccordance with procedures prepared in conjunction withits manufacturer's recommendations for the class ofservice.

TR 16.7-9-14 Verify that the SSS diesel starting 24-Volt batteries, cell 18 monthsplates, and battery racks show no visual indication ofphysical damage or abnormal deterioration.

TR 16.7-9-15 Verify that the SSS diesel starting 24-Volt battery-to- 18 monthsbattery and terminal connections are clean, tight, andfree of corrosion.

TR 16.7-9-16 Verify that the SSS 250/125-Volt batteries, cell plates, 18 monthsand battery racks show no visual indications of physicaldamage or abnormal deterioration.

TR 16.7-9-17 Verify that the SSS 250/125-Volt battery-to-battery and 18 monthsterminal connections are clean, tight, free of corrosion,and coated with anti-corrosion material.

TR 16.7-9-18 Verify that the steam turbine driven auxiliary feedwater 18 monthspump and controls from the Standby Shutdown Facilityfunction as designed from the SSS.

TR 16.7-9-19 Perform CHANNEL CALIBRATION of each SSS 18 months

instrumentation device.

(continued)

Catawba Units 1 and 2 16.7-9-3 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-20 Verify proper installation of pressurizer insulation. 18 months

TR 16.7-9-21 Verify pressurizer heaters powered from the SSS have a 18 monthscapacity of > 65 kW.

BASES The SSS is designed to mitigate the consequences of certain postulatedfire, security, and station blackout incidents by providing capability tomaintain MODE 3 conditions and by controlling and monitoring vitalsystems from locations external to the main control room. This capabilityis consistent with the requirements of 10 CFR Part 50, Appendix R,NUREG-0800, Section 9.5-1, and Appendix A to Branch TechnicalPosition APSCB 9.5-1.

The TESTING REQUIREMENTS ensure that the SSS systems andcomponents are capable of performing their intended functions. Therequired level in the SSS diesel generator fuel storage tank ensuressufficient fuel for 72 hours uninterrupted operation. It is assumed that,within 72 hours, either offsite power can be restored or additional fuel canbe added to the storage tank.

Although the standby makeup pump is not nuclear safety related and wasnot designed according to ASME Code requirements, it is tested quarterlyto ensure its FUNCTIONALITY. The TESTING REQUIREMENTconcerning the standby makeup pump water supply ensures that anadequate water volume is available to supply the pump continuously for72 hours.

Total accumulative LEAKAGE is calculated in the NC System LeakageCalculation procedure as identified + unidentified + seal leakoff(References 2 and 3). The REMEDIAL ACTION limit of 20 gpm totalaccumulative LEAKAGE provides additional margin to allow forinstrument inaccuracy, and for the predicted increase in seal leakoff ratedue to heatup of the reactor coolant pump seal injection water supplytemperature following the SSS event (due to spent fuel pool heatup).Following the increase in seal injection temperature, the standby makeuppump flow of 26 gpm is sufficient to provide in excess of this totalaccumulative LEAKAGE, thereby assuring that reactor coolant systeminventory is maintained at MODE 3 conditions. The supporting evaluationis provided in CNC-1223.04-00-0072 (Ref. 4).

A visual inspection of the diesel starting 24-volt batteries, cell plates, andbattery racks provides an indication of physical damage or abnormaldeterioration that could potentially degrade battery performance. Since

Catawba Units 1 and 2 16.7-9-4 Revision 7

SSS16.7-9

BASES (continued)

the battery cell jars are not transparent, a direct visual inspection of thecell plates cannot be performed. Instead, the cell plates are inspected forphysical damage and abnormal deterioration by: 1) visually inspectingthe jar sides of each cell for excessive bowing and/or deformation, and 2)visually inspecting the electrolyte of each cell for abnormal appearance.

Verifying individual cell voltage while on float charge for the SSS dieselstarting 24-Volt batteries ensures that each cell is capable of supportingits intended function. Float charge is the condition in which the, charger issupplying the continuous charge required to overcome the internal lossesof a battery (or battery cell) and maintain the battery (or battery cell) in afully charged state. The battery cell voltage limit of 1.36 volts isconsistent with the nominal design voltage of the battery and is based onthe manufacturer's recommended minimum float charge voltage for afully charged cell with adequate capacity. The battery is designed andsized with a capacity margin sufficient to allow up to one cell per batterybank to be fully degraded with a voltage < 1.36 volts assuming that nocells are jumpered out. The battery sizing calculations account for onedegraded cell per battery bank by assuming the degraded cells undergoa worst case polarity reversal during SSS diesel starting.

Verification of proper installation of pressurizer insulation ensures thatpressurizer heat losses during an SSS event do not exceed the capacityof the pressurizer heaters powered from the SSS.

Testing of the pressurizer heater capacity ensures the full capacity of theheaters is available to maintain a steam bubble in the pressurizer duringan SSS event.

REFERENCES 1. Letter from NRC to Gary R. Peterson, Duke, Issuance ofImproved Technical Specifications Amendments for Catawba,September 30, 1998.

2. PT/1(2)/A/4150/001 D, NC System Leakage Calculation.

3. PT/1 (2)/A/4150/0011, Manual NC Leakage Calculation.

4. CNC-1223.04-00-0072, Reactor Coolant Pumps No. 1 SealLeakoff Annunciator Alarm Setpoint for Unit 1 and Unit 2.

5. CNS-1 560.SS-00-0001, Design Basis Specification for theStandby Shutdown Facility.

6. Catawba Technical Specification Amendments 206/200, July10, 2003.

7. Catawba UFSAR, Section 18.2.4.

Catawba. Units 1 and 2 16.7-9-5 Revision 7

SSS16.7-9

REFERENCES (continued)

8. Catawba License Renewal Commitments, CNS-1274.00-00-0016, Section 4.5.

Catawba Units 1 and 2 16.7-9-6 Revision 7

Duke DUKE ENERGY CORPORATIONCatawba Nuclear Station

SEnergys 4800 Concord Rd.York, SC 29745

April 16, 2012

Re: Catawba Nuclear StationSelected Licensee Commitments ManualRevision Dates: 04/11/2012

Attached are revisions to the Catawba Nuclear Station Selected LicenseeCommitments Manual. Please remove and replace the following pages:

REMOVE THESE PAGES INSERT THESE PAGES

LIST OF EFFECTIVE SECTIONS

Pages 1 through 4Revision 49

Pages 1 through 4Revision 50

TAB 16.7

SLC 16.7-9Revision 6

SLC 16.7-9Revision 7

If you have any questions concerning the contents of this package update,contact Kristi Byers at (803)701-3758.

Manager, Regulatory Compliance

Attachment

www. duke-energy. corn

UPDATE INSTRUCTIONS FOR CATAWBA SELECTED LICENSEE COMMITMENTS (SLC)MANUAL

Please update your copy of the Catawba SLC Manual as follows:

Remove Insert

List of Effective Sections, Revision 49 List of Effective Sections, Revision 50

16.7-9, Revision 6 16.7-9, Revision 7

LIST OF EFFECTIVE SECTIONS

SECTION

TABLE OF CONTENTS

16.1

16.2

16.3

16.5-1

16.5-2

16.5-3

16.5-4

16.5-5

16.5-6

16.5-7

16.5-8

16.5-9

16.5-10

16.6-1

16.6-2

16.6-3

16.6-4

16.6-5

16.7-1

16.7-2

16.7-3

16.7-4

16.7-5

REVISION NUMBER

13

1

2

1

2

Deleted

1

0

1

1

0

2

1

Deleted

0

Deleted

1

1

1

1

4

2

2

2

REVISION DATE

03/05/12

08/27/08

08/21/09

08/21/09

02/20/12

02/20/04

10/09/02

01/28/10

08/21/09

10/09/02

12/22/08

02/20/12

10/09/02

08/21/09

08/21/09

08/21/09

08/21/09

02/03/11

02/03/11

08/21/09

08/21/09

Catawba Units 1 and 2 Page 1 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.7-6

16.7-7

16.7-8

16.7-9

16.7-10

16.7-11

16.7-12

16.7-13

16.7-14

16.7-15

16.7-16

16.8-1

16.8-2

16.8-3

16.8-4

16.8-5

16.9-1

16.9-2

16.9-3

16.9-4

16.9-5

16.9-6

16.9-7

16.9-8

REVISION NUMBER

2

1

2

7

4

1

1

2

1

1

0

3

2

1

2

3

7

5

3

3

6

7

4

5

REVISION DATE

08/21/09

08/21/09

08/21/09

04/11/12

10/24/11

08/21/09

08/21/09

08/21/09

08/21/09

08/21/09

06/08/09

08/21/09

02/20/12

10/24/06

11/05/07

08/21/09

10/24/11

10/24/11

02/03/11

08/21/09

06/23/10

08/21/09

08/21/09

08/21/09

Catawba Units 1 and 2 Page 2 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.9-9

16.9-10

16.9-11

16.9-12

16.9-13

16.9-14

16.9-15

16.9-16

16.9-17

16.9-18

16.9-19

16.9-20

16.9-21

16.9-22

16.9-23

16.9-24

16.9-25

16.9-26

16.10-1

16.10-2

16.10-3

16.11-1

16.11-2

16.11-3

REVISION NUMBER

3

5

3

2

3

1

2

2

0

0

3

0

0

1

4

2

2

0

1

1

0

3

0

REVISION DATE

08/21/09

08/21/09

08/21/09

08/21/09

08/21/09

09/25/06

08/21/09

08/21/09

10/09/02

10/09/02

02/20/12

10/09/02

10/09/02

08/21/09

10/24/11

10/24/06

08/21/09

03/05/12

08/21/09

10/24/06

08/21/09

10/09/02

06/23/10

10/09/02

Catawba Units I and 2 Page 3 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.11-4

16.11-5

16.11-6

16.11-7

16.11-8

16.11-9

16.11-10

16.11-11

16.11-12

16.11-13

16.11-14

16.11-15

16.11-16

16.11-17

16.11-18

16.11-19

16.11-20

16.11-21

16.12-1

16.13-1

16.13-2

16.13-3

16.13-4

REVISION NUMBER

1

0

1

6

0

0

1

1

0

0

0

0

10

1

0

0

0

0

0

Deleted

Deleted

0

REVISION DATE

08/21/09

10/09/02

06/08/09

10/24/11

10/09/02

10/09/02

08/21/09

03/20/03

10/09/02

10/09/02

10/09/02

10/09/02

10/24/11

10/09/02

08/21/09

10/09/02

08/21/09

10/09/02

10/09/02

10/09/02

10/09/02

Catawba Units 1 and 2 Page 4 Revision 50

SSS16.7-9

16.7 INSTRUMENTATION

16.7-9 Standby Shutdown System (SSS)

COMMITMENT

APPLICABILITY:

The SSS shall be FUNCTIONAL.

MODES 1, 2, and 3.

REMEDIAL ACTIONS

------------------------------------ NOTE-SLC 16.2.3 is not applicable.

CONDITION REQUIRED ACTION COMPLETION TIME

A. SSS non-functional. A.1 Restore SSS to 7 daysFUNCTIONAL status.

B. Total accumulative B.1 Declare the standby ImmediatelyLEAKAGE from makeup pump non-unidentified LEAKAGE, functional and enteridentified LEAKAGE, Condition A.and reactor coolantpump seal LEAKAGE >20 gpm.

C. More than one cell in a C.1 Enter Condition A. Immediately24-Volt battery bank is <1.36 volts on floatcharge with no othercells jumpered.

D. Required Action and D.1 Be in MODE 3. 6 hoursassociated CompletionTime of Condition A not ANDmet.

D.2 Be in MODE 4. 12 hours

Catawba Units 1 and 2 16.7-9-1 Revision 7

SSS16.7-9

TESTING REQUIREMENTS

TEST FREQUENCY

TR 16.7-9-1 Verify that the electrolyte level of each SSS diesel 7 daysstarting 24-Volt battery is > the low mark and < the highmark.

TR 16.7-9-2 Verify that the overall SSS diesel starting 24-Volt battery 7 daysvoltage is > 24 volts on float charge.

TR 16.7-9-3 Verify that the requirements of SLC 16.9-21 are met and 7 daysthe boron concentration in the storage pool is > theminimum specified in the COLR.

TR 16.7-9-4 Verify the fuel level in the SSS diesel generator fuel 31 daysstorage tank is > 67 inches.

TR 16.7-9-5 Verify the SSS diesel generator starts from ambient 31 daysconditions and operates for > 30 minutes at > 700 kW.

TR 16.7-9-6 Verify that the electrolyte level of each SSS 250/125-Volt 31 daysbattery is above the plates.

TR 16.7-9-7 Verify the total SSS 250/125-Volt battery terminal voltage 31 daysis > 258/129 volts on float charge.

TR 16.7-9-8 Perform CHANNEL CHECK of each SSS 31 daysinstrumentation device.

TR 16.7-9-9 Verify the fuel oil properties of new and stored fuel oil for In accordance withthe SSS diesel generator are tested in accordance with, the Diesel Fuel Oiland maintained within the limits of, the Diesel Fuel Oil Testing ProgramTesting Program.

TR 16.7-9-10 Verify that the SSS diesel starting 24-Volt battery 92 days

individual cell voltage is > 1.36 volts on float charge.

(continued)

Catawba Units 1 and 2 16.7-9-2 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-11 Verify that the Standby Makeup Pump's developed head 92 daysat the test flow point is > the required developed head, inaccordance with the Inservice Testing Program.

TR 16.7-9-12 Verify that the specific gravity of the SSS 250/125-Volt 92 daysbattery is appropriate for continued service of the battery.

TR 16.7-9-13 Subject the SSS diesel generator to an inspection in 18 monthsaccordance with procedures prepared in conjunction withits manufacturer's recommendations for the class ofservice.

TR 16.7-9-14 Verify that the SSS diesel starting 24-Volt batteries, cell 18 monthsplates, and battery racks show no visual indication ofphysical damage or abnormal deterioration.

TR 16.7-9-15 Verify that the SSS diesel starting 24-Volt battery-to- 18 monthsbattery and terminal connections are clean, tight, andfree of corrosion.

TR 16.7-9-16 Verify that the SSS 250/125-Volt batteries, cell plates, 18 monthsand battery racks show no visual indications of physicaldamage or abnormal deterioration.

TR 16.7-9-17 Verify that the SSS 250/125-Volt battery-to-battery and 18 monthsterminal connections are clean, tight, free of corrosion,and coated with anti-corrosion material.

TR 16.7-9-18 Verify that the steam turbine driven auxiliary feedwater 18 monthspump and controls from the Standby Shutdown Facilityfunction as designed from the SSS.

TR 16.7-9-19 Perform CHANNEL CALIBRATION of each SSS 18 months

instrumentation device.

(continued)

Catawba Units 1 and 2 16.7-9-3 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-20 Verify proper installation of pressurizer insulation. 18 months

TR 16.7-9-21 Verify pressurizer heaters powered from the SSS have a 18 monthscapacity of > 65 kW.

BASES The SSS is designed to mitigate the consequences of certain postulatedfire, security, and station blackout incidents by providing capability tomaintain MODE 3 conditions and by controlling and monitoring vitalsystems from locations external to the main control room. This capabilityis consistent with the requirements of 10 CFR Part 50, Appendix R,NUREG-0800, Section 9.5-1, and Appendix A to Branch TechnicalPosition APSCB 9.5-1.

The TESTING REQUIREMENTS ensure that the SSS systems andcomponents are capable of performing their intended functions. Therequired level in the SSS diesel generator fuel storage tank ensuressufficient fuel for 72 hours uninterrupted operation. It is assumed that,within 72 hours, either offsite power can be restored or additional fuel canbe added to the storage tank.

Although the standby makeup pump is not nuclear safety related and wasnot designed according to ASME Code requirements, it is tested quarterlyto ensure its FUNCTIONALITY. The TESTING REQUIREMENTconcerning the standby makeup pump water supply ensures that anadequate water volume is available to supply the pump continuously for72 hours.

Total accumulative LEAKAGE is calculated in the NC System LeakageCalculation procedure as identified + unidentified + seal leakoff(References 2 and 3). The REMEDIAL ACTION limit of 20 gpm totalaccumulative LEAKAGE provides additional margin to allow forinstrument inaccuracy, and for the predicted increase in seal leakoff ratedue to heatup of the reactor coolant pump seal injection water supplytemperature following the SSS event (due to spent fuel pool heatup).Following the increase in seal injection temperature, the standby makeuppump flow of 26 gpm is sufficient to provide in excess of this totalaccumulative LEAKAGE, thereby assuring that reactor coolant systeminventory is maintained at MODE 3 conditions. The supporting evaluationis provided in CNC-1223.04-00-0072 (Ref. 4).

A visual inspection of the diesel starting 24-volt batteries, cell plates, andbattery racks provides an indication of physical damage or abnormaldeterioration that could potentially degrade battery performance. Since

Catawba Units 1 and 2 16.7-9-4 Revision 7

SSS16.7-9

BASES (continued)

the battery cell jars are not transparent, a direct visual inspection of thecell plates cannot be performed. Instead, the cell plates are inspected forphysical damage and abnormal deterioration by: 1) visually inspectingthe jar sides of each cell for excessive bowing and/or deformation, and 2)visually inspecting the electrolyte of each cell for abnormal appearance.

Verifying individual cell voltage while on float charge for the SSS dieselstarting 24-Volt batteries ensures that each cell is capable of supportingits intended function. Float charge is the condition in which the charger issupplying the continuous charge required to overcome the internal lossesof a battery (or battery cell) and maintain the battery (or battery cell) in afully charged state. The battery cell voltage limit of 1.36 volts isconsistent with the nominal design voltage of the battery and is based onthe manufacturer's recommended minimum float charge voltage for afully charged cell with adequate capacity. The battery is designed andsized with a capacity margin sufficient to allow up to one cell per batterybank to be fully degraded with a voltage < 1.36 volts assuming that nocells are jumpered out. The battery sizing calculations account for onedegraded cell per battery bank by assuming the degraded cells undergoa worst case polarity reversal during SSS diesel starting.

Verification of proper installation of pressurizer insulation ensures thatpressurizer heat losses during an SSS event do not exceed the capacityof the pressurizer heaters powered from the SSS.

Testing of the pressurizer heater capacity ensures the full capacity of theheaters is available to maintain a steam bubble in the pressurizer duringan SSS event.

REFERENCES 1. Letter from NRC to Gary R. Peterson, Duke, Issuance ofImproved Technical Specifications Amendments for Catawba,September 30, 1998.

2. PT/1(2)/A/4150/001D, NC System Leakage Calculation.

3. PT/1(2)/A/4150/001 I, Manual NC Leakage Calculation.

4. CNC-1223.04-00-0072, Reactor Coolant Pumps No. 1 SealLeakoff Annunciator Alarm Setpoint for Unit 1 and Unit 2.

5. CNS-1560.SS-00-0001, Design Basis Specification for theStandby Shutdown Facility.

6. Catawba Technical Specification Amendments 206/200, July10, 2003.

7. Catawba UFSAR, Section 18.2.4.

Catawba. Units 1 and 2 16.7-9-5 Revision 7

SSS16.7-9

REFERENCES (continued)

8. Catawba License Renewal Commitments, CNS-1274.00-00-0016, Section 4.5.

Catawba Units 1 and 2 16.7-9-6 Revision 7

DUKE ENERGY CORPORATIONDuke Catawba Nuclear Station

PwEnergye 4800 Concord Rd.York, SC 29745I

April 16, 2012

Re: Catawba Nuclear StationSelected Licensee Commitments ManualRevision Dates: 04/11/2012

Attached are revisions to the Catawba Nuclear Station Selected LicenseeCommitments Manual. Please remove and replace the following pages:

REMOVE THESE PAGES INSERT THESE PAGES

LIST OF EFFECTIVE SECTIONS

Pages 1 through 4Revision 49

Pages 1 through 4Revision 50

TAB 16.7

SLC 16.7-9Revision 6

SLC 16.7-9Revision 7

If you have any questions concerning the contents of this package update,contact Kristi Byers at (803)701-3758.

Manager, Regulatory Compliance

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UPDATE INSTRUCTIONS FOR CATAWBA SELECTED LICENSEE COMMITMENTS (SLC)MANUAL

Please update your copy of the Catawba SLC Manual as follows:

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List of Effective Sections, Revision 49 List of Effective Sections, Revision 50

16.7-9, Revision 6 16.7-9, Revision 7

LIST OF EFFECTIVE SECTIONS

SECTION

TABLE OF CONTENTS

16.1

16.2

16.3

16.5-1

16.5-2

16.5-3

16.5-4

16.5-5

16.5-6

16.5-7

16.5-8

16.5-9

16.5-10

16.6-1

16.6-2

16.6-3

16.6-4

16.6-5

16.7-1

16.7-2

16.7-3

16.7-4

16.7-5

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REVISION DATE

03/05/12

08/27/08

08/21/09

08/21/09

02/20/12

02/20/04

10/09/02

01/28/10

08/21/09

10/09/02

12/22/08

02/20/12

10/09/02

08/21/09

08/21/09

08/21/09

08/21/09

02/03/11

02/03/11

08/21/09

08/21/09

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LIST OF EFFECTIVE SECTIONS

SECTION

16.7-6

16.7-7

16.7-8

16.7-9

16.7-10

16.7-11

16.7-12

16.7-13

16.7-14

16.7-15

16.7-16

16.8-1

16.8-2

16.8-3

16.8-4

16.8-5

16.9-1

16.9-2

16.9-3

16.9-4

16.9-5

16.9-6

16.9-7

16.9-8

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REVISION DATE

08/21/09

08/21/09

08/21/09

04/11/12

10/24/11

08/21/09

08/21/09

08/21/09

08/21/09

08/21/09

06/08/09

08/21/09

02/20/12

10/24/06

11/05/07

08/21/09

10/24/11

10/24/11

02/03/11

08/21/09

06/23/10

08/21/09

08/21/09

08/21/09

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LIST OF EFFECTIVE SECTIONS

SECTION

16.9-9

16.9-10

16.9-11

16.9-12

16.9-13

16.9-14

16.9-15

16.9-16

16.9-17

16.9-18

16.9-19

16.9-20

16.9-21

16.9-22

16.9-23

16.9-24

16.9-25

16.9-26

16.10-1

16.10-2

16.10-3

16.11-1

16.11-2

16.11-3

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08/21/09

08/21/09

10/09/02

10/09/02

02/20/12

10/09/02

10/09/02

08/21/09

10/24/11

10/24/06

08/21/09

03/05/12

08/21/09

10/24/06

08/21/09

10/09/02

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10/09/02

Catawba Units 1 and 2 Page 3 Revision 50

LIST OF EFFECTIVE SECTIONS

SECTION

16.11-4

16.11-5

16.11-6

16.11-7

16.11-8

16.11-9

16.11-10

16.11-11

16.11-12

16.11-13

16.11-14

16.11-15

16.11-16

16.11-17

16.11-18

16.11-19

16.11-20

16.11-21

16.12-1

16.13-1

16.13-2

16.13-3

16.13-4

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10/09/02

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10/09/02

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Catawba Units 1 and 2 Page 4 Revision 50

SSS16.7-9

16.7 INSTRUMENTATION

16.7-9 Standby Shutdown System (SSS)

COMMITMENT

APPLICABILITY:

The SSS shall be FUNCTIONAL.

MODES 1, 2, and 3.

REMEDIAL ACTIONS

-NOTE-SLC 16.2.3 is not applicable.

CONDITION REQUIRED ACTION COMPLETION TIME

A. SSS non-functional. A.1 Restore SSS to 7 daysFUNCTIONAL status.

B. Total accumulative B.1 Declare the standby ImmediatelyLEAKAGE from makeup pump non-unidentified LEAKAGE, functional and enteridentified LEAKAGE, Condition A.and reactor coolantpump seal LEAKAGE >20 gpm.

C. More than one cell in a C.1 Enter Condition A. Immediately24-Volt battery bank is <1.36 volts on floatcharge with no othercells jumpered.

D. Required Action and D.1 Be in MODE 3. 6 hoursassociated CompletionTime of Condition A not ANDmet.

D.2 Be in MODE 4. 12 hours

Catawba Units 1 and 2 16.7-9-1 Revision 7

SSS16.7-9

TESTING REQUIREMENTS

TEST FREQUENCY

TR 16.7-9-1 Verify that the electrolyte level of each SSS diesel 7 daysstarting 24-Volt battery is > the low mark and < the highmark.

TR 16.7-9-2 Verify that the overall SSS diesel starting 24-Volt battery 7 daysvoltage is > 24 volts on float charge.

TR 16.7-9-3 Verify that the requirements of SLC 16.9-21 are met and 7 daysthe boron concentration in the storage pool is > theminimum specified in the COLR.

TR 16.7-9-4 Verify the fuel level in the SSS diesel generator fuel 31 daysstorage tank is > 67 inches.

TR 16.7-9-5 Verify the SSS diesel generator starts from ambient 31 daysconditions and operates for > 30 minutes at > 700 kW.

TR 16.7-9-6 Verify that the electrolyte level of each SSS 250/125-Volt 31 daysbattery is above the plates.

TR 16.7-9-7 Verify the total SSS 250/125-Volt battery terminal voltage 31 daysis > 258/129 volts on float charge.

TR 16.7-9-8 Perform CHANNEL CHECK of each SSS 31 daysinstrumentation device.

TR 16.7-9-9 Verify the fuel oil properties of new and stored fuel oil for In accordance withthe SSS diesel generator are tested in accordance with, the Diesel Fuel Oiland maintained within the limits of, the Diesel Fuel Oil Testing ProgramTesting Program.

TR 16.7-9-10 Verify that the SSS diesel starting 24-Volt battery 92 days

individual cell voltage is > 1.36 volts on float charge.

(continued)

Catawba Units I and 2 16.7-9-29 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-11 Verify that the Standby Makeup Pump's developed head 92 daysat the test flow point is > the required developed head, inaccordance with the Inservice Testing Program.

TR 16.7-9-12 Verify that the specific gravity of the SSS 250/125-Volt 92 daysbattery is appropriate for continued service of the battery.

TR 16.7-9-13 Subject the SSS diesel generator to an inspection in 18 monthsaccordance with procedures prepared in conjunction withits manufacturer's recommendations for the class ofservice.

TR 16.7-9-14 Verify that the SSS diesel starting 24-Volt batteries, cell 18 monthsplates, and battery racks show no visual indication ofphysical damage or abnormal deterioration.

TR 16.7-9-15 Verify that the SSS diesel starting 24-Volt battery-to- 18 monthsbattery and terminal connections are clean, tight, andfree of corrosion.

TR 16.7-9-16 Verify that the SSS 250/125-Volt batteries, cell plates, 18 monthsand battery racks show no visual indications of physicaldamage or abnormal deterioration.

TR 16.7-9-17 Verify that the SSS 250/125-Volt battery-to-battery and 18 monthsterminal connections are clean, tight, free of corrosion,and coated with anti-corrosion material.

TR 16.7-9-18 Verify that the steam turbine driven auxiliary feedwater 18 monthspump and controls from the Standby Shutdown Facilityfunction as designed from the SSS.

TR 16.7-9-19 Perform CHANNEL CALIBRATION of each SSS 18 months

instrumentation device.

(continued)

Catawba Units 1 and 2 16.7-9-3 Revision 7

SSS16.7-9

TESTING REQUIREMENTS (continued)

TEST FREQUENCY

TR 16.7-9-20 Verify proper installation of pressurizer insulation. 18 months

TR 16.7-9-21 Verify pressurizer heaters powered from the SSS have a 18 monthscapacity of > 65 kW.

BASES The SSS is designed to mitigate the consequences of certain postulatedfire, security, and station blackout incidents by providing capability tomaintain MODE 3 conditions and by controlling and monitoring vitalsystems from locations external to the main control room. This capabilityis consistent with the requirements of 10 CFR Part 50, Appendix R,NUREG-0800, Section 9.5-1, and Appendix A to Branch TechnicalPosition APSCB 9.5-1.

The TESTING REQUIREMENTS ensure that the SSS systems andcomponents are capable of performing their intended functions. Therequired level in the SSS diesel generator fuel storage tank ensuressufficient fuel for 72 hours uninterrupted operation. It is assumed that,within 72 hours, either offsite power can be restored or additional fuel canbe added to the storage tank.

Although the standby makeup pump is not nuclear safety related and wasnot designed according to ASME Code requirements, it is tested quarterlyto ensure its FUNCTIONALITY. The TESTING REQUIREMENTconcerning the standby makeup pump water supply ensures that anadequate water volume is available to supply the pump continuously for72 hours.

Total accumulative LEAKAGE is calculated in the NC System LeakageCalculation procedure as identified + unidentified + seal leakoff(References 2 and 3). The REMEDIAL ACTION limit of 20 gpm totalaccumulative LEAKAGE provides additional margin to allow forinstrument inaccuracy, and for the predicted increase in seal leakoff ratedue to heatup of the reactor coolant pump seal injection water supplytemperature following the SSS event (due to spent fuel pool heatup).Following the increase in seal injection temperature, the standby makeuppump flow of 26 gpm is sufficient to provide in excess of this totalaccumulative LEAKAGE, thereby assuring that reactor coolant systeminventory is maintained at MODE 3 conditions. The supporting evaluationis provided in CNC-1223.04-00-0072 (Ref. 4).

A visual inspection of the diesel starting 24-volt batteries, cell plates, andbattery racks provides an indication of physical damage or abnormaldeterioration that could potentially degrade battery performance. Since

Catawba Units 1 and 2 16.7-9-4 Revision 7

SSS16.7-9

BASES (continued)

the battery cell jars are not transparent, a direct visual inspection of thecell plates cannot be performed. Instead, the cell plates are inspected forphysical damage and abnormal deterioration by: 1) visually inspectingthe jar sides of each cell for excessive bowing and/or deformation, and 2)visually inspecting the electrolyte of each cell for abnormal appearance.

Verifying individual cell voltage while on float charge for the SSS dieselstarting 24-Volt batteries ensures that each cell is capable of supportingits intended function. Float charge is the condition in which the charger issupplying the continuous charge required to overcome the internal lossesof a battery (or battery cell) and maintain the battery (or battery cell) in afully charged state. The battery cell voltage limit of 1.36 volts isconsistent with the nominal design voltage of the battery and is based onthe manufacturer's recommended minimum float charge voltage for afully charged cell with adequate capacity. The battery is designed andsized with a capacity margin sufficient to allow up to one cell per batterybank to be fully degraded with a voltage < 1.36 volts assuming that nocells are jumpered out. The battery sizing calculations account for onedegraded cell per battery bank by assuming the degraded cells undergoa worst case polarity reversal during SSS diesel starting.

Verification of proper installation of pressurizer insulation ensures thatpressurizer heat losses during an SSS event do not exceed the capacityof the pressurizer heaters powered from the SSS.

Testing of the pressurizer heater capacity ensures the full capacity of theheaters is available to maintain a steam bubble in the pressurizer duringan SSS event.

REFERENCES 1. Letter from NRC to Gary R. Peterson, Duke, Issuance ofImproved Technical Specifications Amendments for Catawba,September 30, 1998.

2. PT/1(2)/A/4150/001 D, NC System Leakage Calculation.

3. PT/1 (2)/A/4150/0011, Manual NC Leakage Calculation.

4. CNC-1223.04-00-0072, Reactor Coolant Pumps No. 1 SealLeakoff Annunciator Alarm Setpoint for Unit 1 and Unit 2.

5. CNS-1 560.SS-00-0001, Design Basis Specification for theStandby Shutdown Facility.

6. Catawba Technical Specification Amendments 206/200, July10, 2003.

7. Catawba UFSAR, Section 18.2.4.

Catawba. Units 1 and 2 16.7-9-5 Revision 7

I

SSS16.7-9

REFERENCES (continued)

8. Catawba License Renewal Commitments, CNS-1274.00-00-0016, Section 4.5.

Catawba Units 1 and 2 16.7-9-6 Revision 7