ML17332A272

Amends 180 & 164 to Licenses DPR-58 & DPR-74,respectively, Changing TS Surveillance Requirement Interval from 9 Months to 18 Months for Chemical Analysis,Weighing & Flow Passage Insp of Ice Condenser

ML17332A272
Person / Time
Site:	Cook
Issue date:	08/23/1994
From:	Marsh L Office of Nuclear Reactor Regulation
To:
Shared Package
ML17332A273	List: ML17332A272 ML17332A274
References
NUDOCS 9408300112
Download: ML17332A272 (12)

Text

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UNITED STATES NUCLEAR REGULATORY COIVIIVIISSION WASHINGTON, D.C. 20555.0001 INDIANA MICHIGAN POWER COMPANY DOCKET NO. 50-315 DONALD C.

COOK NUCL AR P

ANT UNIT NO 1

AMENDMENT TO FACILITY OPERATING ICENSE Amendment No.

180 License No.

DPR-58 l.

The Nuclear Regulatory Commission (the Commission) has found that:

The application for amendment by Indiana Michigan Power Company (the licensee) dated November 15,

1993, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act),

and the Commission's rules and regulations set forth in 10 CFR Chapter I:

B.

The facility will operate in conformity with the application, the nrovisions of the Act, and the rules and regulations of the Commission:

C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the puhlic, and (ii) that such activities will be conducted in compliance with the Commission's regulations; D.

'ThI issuanI.e of this amendment will not be inimical to the common 6~<ense

~n6 security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.

9408300112 940823 PDR ADOCK 050003T5 l

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2.

Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No.

DPR-58 is hereby amended to read as follows:

Technical S ecifications The Technical Specifications contained in Appendices A and B,

as revised through Amendment No.

180

, are hereby incorporated in the license.

The licensee shall operate the facility in accordance with the Technical Specifications.

3.

This license amendment is effective as of the date of issuance.

FOR THE NUCLEAR REGULATORY COHHISSION

Attachment:

Changes to the Technical Specifications Date of Issuance:

August 23, 1994 Ledyard B. Harsh, Director Project Directorate III-I Division of Reactor Projects - III/IV Office of Nuclear Reactor Regulation

ATTACHMENT 0 LICENSE AMENDMENT NO. 180 TO FACILITY OPERATING LICENSE NO. DPR-58 DOCKET NO. 50-315 Revise Appendix A Technical Specifications by removing the pages identified below and inserting the attached pages.

The revised pages are identified by amendment number and contain vertical lines indicating the area of change.

REMOVE 3/4 6-26 B 3/4 6-3*

B 3/4 6-4 NSERT 3/4 6-26 B 3/4 6-3*

B 3/4 6-4

• Overleaf page provided to maintain document completeness.

No changes contained on these pages.

CONTAINMENT SYSTEMS 3 4.6.5 ICE CONDENSER ICE BED LIMITING CONDITION FOR OPERATION 3.6.5. 1 The ice bed shall be OPERABLE with:

a.

The stored ice having boron concentration of at least 1800 ppm (the boron being in the form of sodium tetraborate),

and a

pH of 9.0 to 9.5 at 25'C, b.

Flow channels through the ice condenser, c.

A maximum ice bed temperature of < 27'F, d.

Each ice basket containing at least 1220 lbs of ice, and e.

1944 ice baskets.

APPLICABILITY:

MODES 1, 2, 3, and 4.

~CT ION:

With the ice bed inoperable, restore the ice bed to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEILLANCE REQUIREMENTS 4.6.5.

1 The ice condenser shall be determined OPERABLE:

a ~

b.

At least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> by using the ice bed temperature monitoring system to verify that the maximum ice bed temperature is

< 27'F.

At least once per 18 months by:

Chemical analyses which verify that at least 9

representative samples of stored ice have a boron concentration of at least 1800 ppm (the boron being in the form of sodium tetraborate),

and a

pH of 9.0 to 9.5 at 25 C.

2.

Weighing a representative sample of at least 144 ice baskets and verifying that each basket contains at least 1220 lbs of ice.

The representative sample shall include 6 baskets from each of the 24 ice condenser bays and D.

C.

COOK UNIT 1

3/4 6-26 Amendment No.

PP, 180

CONTAINMENT SYSTEMS BASES 3/4.6.2 DEPRESSURIZATION AND COOLING SYSTEMS 3/4.6.2.1 CONTAINMENT SPRAY SYSTEM The OPERABILITY of the containment spray system ensures that contain-ment depressurization and cooling capability will be available in the event of a LOCA.

The pressure reduction and resultant lower containment leakage rate are consistent with the assumptions used 'in the accident analyses.

3/4

~ 6. 2. 2 SPRAY ADDITIVE SYSTEM The OPERABILITY of the spray additive system ensures that sufficient NaOH is added to the containment spray in the event of a LOCA.

The limits on NaOH minimum volume and concentration, ensure that

1) the iodine removal efficiency of the spray water is maintained because of the increase in pH value, and

2) corrosion effects on components within con-tainment are minimized.

These assumptions are consistent with the iodine removal efficiency assumed in the accident

analyses, 3/4.6.3 CONTAINMENT ISOLATION VALVES The OPERABILITY of the containment isolation valves ensures that the containment atmosphere will be isolated from the outside environment in the event of a release of radioactive material to the containment atmosphere or pressurization of the containment.

Containment isolation within the time limits specified ensures that the release of radioactive material to the environment will be consistent with the assumptions used in the analyses for a

LOCA, 3/4.6.4 COMBUSTIBLE GAS CONTROL The OPERABILITY of the equipment and systems required for the detection and control of hydrogen gas ensures that this equipment will be available to maintain the hydrogen concentration within containment below its flammable limit during post-LOCA conditions, Either recombiner unit is capable of controlling the expected hydrogen generation associated with 1) zirconium-water reactions,

2) radiolytic decomposition of water and 3) corrosion of metals within containment.

D.

C.

COOK-UNIT 1

B 3/4 6-3

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~ 8, UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555.0001 INDIANA MICHIGAN POWER COMPANY DOCKET NO. 50-316 DONALD C.

COOK NUCLEAR PLANT UNIT NO.

2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 164 License No.

DPR-74 l.

The Nuclea - Regulatory Commission (the Commission) has found that:

The application for amendment by Indiana Michigan Power Company (the licensee) dated November 15,

1993, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act),

and the Commission's rules and regulations set forth in 10 CFR Chapte~" I; The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission:

C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulations; The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.

2.

Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No.

DPR-74 is hereby amended to read as follows:

Technical S ecifications The Technical Specifications contained in Appendices A and B,

as revised through Amendment No.

164

, are hereby incorporated in the license.

The licensee shall operate the facility in accordance with the Technical Specifications.

3.

This license amendment is effective as of the date of issuance.

FOR THE NUCLEAR REGULATORY COMMISSION

Attachment:

Changes to the Technical Specifications Date of Issuance:

August 23, 1994 Ledyard B. Harsh, Director Project Directorate III-I Division of Reactor Projects - III/IV Office of Nuclear Reactor Regulation

ATTACHMENT TO LICENSE AMENDMENT N0.164 FACILITY OPERATING LICENSE NO.

DPR-74 DOCKET NO. 50-316 Revise Appendix A Technical Specifications by removing the pages identified below and inserting the attached pages.

The revised pages are identified by amendment number and contain vertical lines indicating the area of change.

REMOVE 3/4 6-35 B 3/4 6-3*

B 3/4 6-4 NSERT 3/4 6-35 B 3/4 6-3*

8 3/4 6-4

• Overleaf page provided to maintain document completeness.

No changes contained on these pages.

CONTAINMENT SYSTEMS 3 4.6.5 ICE CONDENSER ICE BED LIMITING CONDITION FOR OPERATION 3.6.5. 1 The ice bed shall be OPERABLE with:

a.

The stored ice having boron concentration of at least 1800 ppm (the boron being in the form of sodium tetraborate),

and a

pH of 9.0 to 9.5 at 25'C, b.

Flow channels through the ice condenser, c.

A maximum ice bed temperature of < 27'F, d.

Each ice basket containing at least 1220 lbs of ice, and e.

1944 ice baskets.

APPLICABILITY:

MODES 1, 2, 3, and 4.

ACTION:

With the ice bed inoperable, restore the ice bed to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEILLANCE REQUIREMENTS 4.6.5.

1 The ice condenser shall be determined OPERABLE:

a

~

b.

At least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> by using the ice bed temperature monitoring system to verify that the maximum ice bed temperature is

< 27'F.

At least once per 18 months by:

Chemical analyses which verify that at least 9

representative samples of stored ice have a boron concentration of at least 1800 ppm (the boron being in the form of sodium tetraborate),

and a

pH of 9.0 to 9.5 at 25'C.

2.

Weighing a representative sample of at least 144 ice baskets and verifying that each basket contains at least 1220 lbs of ice.

The representative sample shall include 6 baskets from each of the 24 ice condenser bays and D.

C.

COOK UNIT 2 3/4 6-35 Amendment No.

PP, 164

CONTAINMENT SYSTEMS BASES 3 4.6. 2 DEPRESSUR IZATION AND COOLING SYSTEMS 3 4.6.2.1 CONTAINMENT SPRAY SYSTEM The OPERABILITY of the containment spray system ensures that contain-ment depressurization and cooling capability will be available in the event of a LOCA.

The pressure reduction and resultant lower containment leakage rate are consistent with the assumptions used in the accident analyses.

3 4.6.2.2 SPRAY ADDITIVE SYSTEM The OPERABILITY of the spray additive system ensures that sufficient NaOH is added to the containment spray in the event of a LOCA.

The limits on NaOH volume and concentration ensure a

pH value of between 8.5 and 11.0 for the solution recirculated within containment after a

LOCA.

This pH band minimizes the evolution of iodine and minimizes the effect of chloride and caustic stress corrosion on mechanical systems and components.

These assumptions are consistent with the iodine removal efficiency assumed in the accident analyses.

The contained water volume limit includes an allowance for water not usable because of tank discharge location or other physical characteristics.

3 4.6.3 CONTAINMENT ISOLATION VALVES The OPERABILITY of the containment isolation valves ensures that the containment atmosphere will be isolated from the outside environment in the event of a release of radioactive material to the containment atmos-phere or pressurization of the containment.

Containment isolation within the time limits specified ensures that the release of radioactive material to the environment will be consistent with the assumptions used in the analyses for a LOCA.

D.

C.

COOK - UNIT 2 B 3/4 6-3 Amendment No.

63

CONTAINMENT SYSTEMS BASES 3 4.6.4 COMBUSTIBLE GAS CONTROL The OPERABILITY of the equipment and systems required for the detection and control of hydrogen gas ensures that this equipment will be available to maintain the hydrogen concentration within containment below its flammable limit during post-LOCA conditions.

Either recombiner unit is capable of controlling the expected hydrogen generation associated with

1) zirconium-water reactions,

2) radiolytic decomposition of water and 3) corrosion of metals within containment.

These hydrogen control systems are consistent with the recommendations of Regulatory Guide 1.7, "Control of Combustible Gas Concentrations in Containment Following A LOCA," March 1971.

3 4.6.5 ICE CONDENSER The requirements associated with each of the components of the ice condenser ensure that the overall system will be available to provide sufficient pressure suppression capability to limit the containment peak pressure transient to less than 12 psig during LOCA conditions.

3 4.6.5.1 ICE BED The OPERABILITY of the ice bed ensures that the required ice inventory will 1) be distributed evenly through the containment

bays,

2) contain sufficient boron to preclude dilution of the containment sump following the LOCA and 3) contain sufficient heat removal capability to condense the reactor system volume released during a

LOCA.

These conditions are consistent with the assumptions used in the accident analyses.

The minimum weight figure of 1220 pounds of ice per basket contains a

10% conservative allowance for ice loss through sublimation which is a

factor of 10 higher than assumed for the ice condenser design.

In the event that observed sublimation rates are equal to or lower than design predictions after three years of operation, the minimum ice baskets weight may be adjusted downward.

In addition, the number of ice baskets, required to be weighed each 18 months may be reduced after 3 years of operation if such a reduction is supported by observed sublimation data.

3 4.6.5.2 ICE BED TEMPERATURE MONITORING SYSTEM The OPERABILITY of the ice bed temperature monitoring system ensures that the capability is available for monitoring the ice temperature.

In the event the monitoring system is inoperable, the ACTION requirements provide assurance that the ice bed heat removal capacity will be retained within the specified time limits.

D.

C.

COOK UNIT 2 B 3/4 6-4 Amendment No. f, 164