ML011520514
| ML011520514 | |
| Person / Time | |
|---|---|
| Issue date: | 05/31/2001 |
| From: | Brach E NRC/NMSS/SFPO |
| To: | Hendricks L Nuclear Energy Institute |
| Shared Package | |
| ML011520507 | List: |
| References | |
| -nr, L20679 | |
| Download: ML011520514 (33) | |
Text
APPENDIX TO CERTIFICATE OF COMPLIANCE No. XXXX STANDARDIZED TECHNICAL SPECIFICATIONS FOR THE NRC SAMPLE STORAGE CASK
TABLE OF CONTENTS 1.0 USE AND APPLICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Logical Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.3 Completion Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.4 Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.0 APPROVED CONTENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3.0 LIMITING CONDITION FOR OPERATION (LCO) APPLICABILITY
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 3.0 SURVEILLANCE REQUIREMENT (SR) APPLICABILITY . . . . . . . . . . . . . . . . . . . . . . 16 3.1 Fuel Integrity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.1.1 Fuel Integrity During Drying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.1.2 Fuel Integrity During Backfill and Transfer . . . . . . . . . . . . . . . . . . . . . 19 3.1.3 SFSC Heat Removal System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.2 Cask Integrity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.2.1 Cask Interseal Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.3 Cask Criticality Control Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3.3.1 Dissolved Boron Concentration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3.3.2 CANISTER Water Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 4.0 DESIGN FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 4.1 Design Features Significant to Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 4.1.1 Criticality Control ................................... 29 4.1.2 Materials ......................................... 29 4.2 Codes and Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 4.2.1 Alternatives to Codes, Standards, and Criteria . . . . . . . . . . . . . . . . . 29 4.2.2 Construction/Fabrication Alternatives to Codes, Standards, and Criteria .............................. 30 4.3 Structural Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 4.3.1 Earthquake Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 4.3.2 Design G-loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 4.4 Cask Handling/CANISTER Transfer Facility . . . . . . . . . . . . . . . . . . . . . . . . 30 5.0 ADMINISTRATIVE CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 5.1 Administrative Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 5.1.1 Radioactive Effluent Control Program . . . . . . . . . . . . . . . . . . . . . . . 31 5.1.2 Cask Loading, Unloading, and Preparation Program
..................................................... 31 5.1.3 ISFSI Operations Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Definitions 1.1 1.0 USE AND APPLICATION 1.1 Definitions
NOTE--------------------------------------------------------
The defined terms of this section appear in capitalized type and are applicable throughout these Technical Specifications and Bases. [Example definitions are given and changes or additional definitions such as DAMAGED FUEL or FUEL DEBRIS may be needed to be consistent with a particular design.]
Term Definition ACTIONS ACTIONS shall be that part of a Specification that prescribes Required Actions to be taken under designated Conditions within specified Completion Times.
[CANISTER The CANISTER is the sealed SPENT NUCLEAR FUEL container which consists of a basket contained in a cylindrical shell which is welded to a baseplate, lid with welded port cover plates, and closure ring. The CANISTER provides the confinement boundary for the contained radioactive materials.
INTACT FUEL ASSEMBLY INTACT FUEL ASSEMBLY is a fuel assembly without known or suspected cladding defects greater than a pinhole leak or a hairline crack and which can be handled by normal means. A fuel assembly shall not be classified as an INTACT FUEL ASSEMBLY unless solid Zircaloy or stainless steel rods are used to replace missing fuel rods and which displace an amount of water equal to that displaced by the original fuel rod(s).
LOADING OPERATIONS LOADING OPERATIONS include all licensed activities on an OVERPACK or TRANSFER CASK while it is being loaded with fuel assemblies. LOADING OPERATIONS begin when the first fuel assembly is placed in the CANISTER and end when the OVERPACK or TRANSFER CASK is suspended from or secured on the transporter. LOADING OPERATIONS does not include CANISTER transfer between the TRANSFER CASK and the OVERPACK.
(continued)
Page 1 of 32
Definitions 1.1 1.1 Definitions (continued)
OPERABLE/OPERABILITY A system, component, or device shall beOPERABLE or have OPERABILITY when it is capable of performing its specified safety function(s) and when all necessary attendant instrumentation, controls, normal or emergency electrical power, and other auxiliary equipment that are required for the system, component, or device to perform its specified safety function(s) are also capable of performing their related support function(s).
OVERPACK OVERPACK is the cask which receives and contains the sealed CANISTER for interim storage in the independent spent fuel storage instillation (ISFSI). It provides gamma and neutron shielding, and provides for ventilated air flow to promote heat transfer from the CANISTER to the environs. The OVERPACK does not include the TRANSFER CASK.
SPENT FUEL STORAGE SFSCs are containers approved for the storage of CASKS (SFSCs) spent fuel assemblies at the ISFSI. The [XXXX] SFSC System consists of the OVERPACK and its integral CANISTER.]
SPENT NUCLEAR FUEL SPENT NUCLEAR FUEL means fuel that has been withdrawn from a nuclear reactor following irradiation, has undergone at least one years decay since being used as a source of energy in a power reactor and has not been chemically separated into its constituent elements by reprocessing. SPENT NUCLEAR FUEL includes the special nuclear material, byproduct material, source material, and other radioactive materials associated with fuel assemblies.
[STORAGE OPERATIONS STORAGE OPERATIONS include all licensed activities that are performed at the ISFSI while an SFSC containing spent fuel is sitting on a storage pad within the ISFSI perimeter. STORAGE OPERATIONS does not include CANISTER transfer between the TRANSFER CASK and the OVERPACK.
TRANSFER CASK TRANSFER CASKs are containers designed to contain the CANISTER during and after loading of spent fuel assemblies and to transfer the CANISTER to or from the OVERPACK.
(continued)
Page 2 of 32
Definitions 1.1 1.1 Definitions (continued)
TRANSPORT OPERATIONSTRANSPORT OPERATIONS include all licensed activities performed on an OVERPACK or TRANSFER CASK loaded with one or more fuel assemblies when it is being moved to and from the ISFSI. TRANSPORT OPERATIONS begin when the OVERPACK or TRANSFER CASK is first suspended from or secured on the transporter and end when the OVERPACK or TRANSFER CASK is at its destination and no longer secured on or suspended from the transporter. TRANSPORT OPERATIONS include transfer of the CANISTER between the OVERPACK and the TRANSFER CASK.
UNLOADING OPERATIONS UNLOADING OPERATIONS include all licensed activities on an SFSC to be unloaded of the contained fuel assemblies.
UNLOADING OPERATIONS begin when the OVERPACK or TRANSFER CASK is no longer suspended from or secured on the transporter and end when the last fuel assembly is removed from the SFSC. UNLOADING OPERATIONS do not include CANISTER transfer between the TRANSFER CASK and the OVERPACK.]
Page 3 of 32
Logical Connectors 1.2 1.0 USE AND APPLICATION 1.2 Logical Connectors PURPOSE The purpose of this section is to explain the meaning of logical connectors.
Logical connectors are used in Technical Specifications (TS) to discriminate between, and yet connect, discrete Conditions, Required Actions, Completion Times, Surveillances, and Frequencies. The only logical connectors that appear in TS are AND and OR. The physical arrangement of these connectors constitutes logical conventions with specific meanings.
BACKGROUND Several levels of logic may be used to state Required Actions. These levels are identified by the placement (or nesting) of the logical connectors and by the number assigned to each Required Action. The first level of logic is identified by the first digit of the number assigned to a Required Action and the placement of the logical connector in the first level of nesting (i.e., left justified with the number of the Required Action).
The successive levels of logic are identified by additional digits of the Required Action number and by successive indentions of the logical connectors.
When logical connectors are used to state a Condition, Completion Time, Surveillance, or Frequency, only the first level of logic is used, and the logical connector is left justified with the statement of the Condition, Completion Time, Surveillance, or Frequency.
(continued)
Page 4 of 32
Logical Connectors 1.2 1.2 Logical Connectors (continued)
EXAMPLES The following examples illustrate the use of logical connectors.
EXAMPLE 1.2-1 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. LCO not A.1 Verify . . .
met.
AND A.2 Restore . . .
In this example, the logical connector AND is used to indicate that when in Condition A, both Required Actions A.1 and A.2 must be completed.
(continued)
Page 5 of 32
Logical Connectors 1.2 1.2 Logical Connectors (continued)
EXAMPLES EXAMPLE 1.2-2 (continued)
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. LCO not A.1 Stop . . .
met.
OR A.2.1 Verify . . .
AND A.2.2.1Reduce . . .
OR A.2.2.2Perform . . .
OR A.3 Remove. . .
This example represents a more complicated use of logical connectors.
Required Actions A.1, A.2, and A.3 are alternative choices, only one of which must be performed as indicated by the use of the logical connector OR and the left justified placement. Any one of these three ACTIONS may be chosen. If A.2 is chosen, then both A.2.1 and A.2.2 must be performed as indicated by the logical connector AND. Required Action A.2.2 is met by performing A.2.2.1 or A.2.2.2. The indented position of the logical connector OR indicates that A.2.2.1 and A.2.2.2 are alternative choices, only one of which must be performed.
Page 6 of 32
Completion Times 1.3 1.0 USE AND APPLICATION 1.3 Completion Times PURPOSE The purpose of this section is to establish the Completion Time convention and to provide guidance for its use.
BACKGROUND Limiting Conditions for Operation (LCOs) specify the lowest functional capability or performance levels of equipment required for safe operation of the facility. The ACTIONS associated with an LCO state Conditions that typically describe the ways in which the requirements of the LCO can fail to be met. Specified with each stated Condition are Required Action(s) and Completion Times(s).
DESCRIPTION The Completion Time is the amount of time allowed for completing a Required Action. It is referenced to the time of discovery of a situation (e.g., equipment or variable not within limits) that requires entering an ACTIONS Condition unless otherwise specified, providing the Cask System is in a specified condition stated in the Applicability of the LCO.
Required Actions must be completed prior to the expiration of the specified Completion Time. An ACTIONS Condition remains in effect and the Required Actions apply until the Condition no longer exists or the Cask System is not within the LCO Applicability.
Once a Condition has been entered, subsequent subsystems, components, or variables expressed in the Condition, discovered to be not within limits, will not result in separate entry into the Condition unless specifically stated. The Required Actions of the Condition continue to apply to each additional failure, with Completion Times based on initial entry into the Condition.
(continued)
Page 7 of 32
Completion Times 1.3 1.3 Completion Times (continued)
EXAMPLES The following examples illustrate the use of Completion Times with different types of Conditions and changing Conditions.
EXAMPLE 1.3-1 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME B. Required B.1 Perform Action 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> Action and B.1.
associated Completion AND Time not 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> met. B.2 Perform Action B.2.
Condition B has two Required Actions. Each Required Action has its own separate Completion Time. Each Completion Time is referenced to the time that Condition B is entered.
The Required Actions of Condition B are to complete action B.1 within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> AND complete action B.2 within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />. A total of 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> is allowed for completing action B.1 and a total of 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> (not 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />) is allowed for completing action B.2 from the time that Condition B was entered. If action B.1 is completed within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, the time allowed for completing action B.2 is the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> because the total time allowed for completing action B.2 is 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.
(continued)
Page 8 of 32
Completion Times 1.3 1.3 Completion Times (continued)
EXAMPLES EXAMPLE 1.3-2 (continued)
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One system not A.1 Restore system to 7 days within limit. within limit.
B. Required Action B.1 Complete action 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and associated B.1.
Completion Time not met. AND 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> B.2 Complete action B.2.
When a system is determined not to meet the LCO, Condition A is entered. If the system is not restored within 7 days, Condition B is also entered and the Completion Time clocks for Required Actions B.1 and B.2 start. If the system is restored after Condition B is entered, Conditions A and B are exited, and therefore, the Required Actions of Condition B may be terminated.
(continued)
Page 9 of 32
Completion Times 1.3 1.3 Completion Times (continued)
EXAMPLES EXAMPLE 1.3-3 (continued)
ACTIONS
NOTE-------------------------------------------
Separate Condition entry is allowed for each component.
CONDITION REQUIRED ACTION COMPLETION TIME A. LCO not met. A.1 Restore compliance 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> with LCO.
B. Required Action B.1 Complete action 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and associated B.1.
Completion AND Time not met.
B.2 Complete action 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> B.2.
The Note above the ACTIONS table is a method of modifying how the Completion Time is tracked. If this method of modifying how the Completion Time is tracked was applicable only to a specific Condition, the Note would appear in that Condition rather than at the top of the ACTIONS Table.
The Note allows Condition A to be entered separately for each component and Completion Times tracked on a per component basis.
When a component is determined to not meet the LCO, Condition A is entered and its Completion Time starts. If subsequent components are determined to not meet the LCO, Condition A is entered for each component and separate Completion Times start and are tracked for each component.
IMMEDIATE When "Immediately" is used as a Completion Time, the Required COMPLETION Action should be pursued without delay and in a controlled manner.
TIME Page 10 of 32
Frequency 1.4 1.0 USE AND APPLICATION 1.4 Frequency PURPOSE The purpose of this section is to define the proper use and application of Frequency requirements.
DESCRIPTION Each Surveillance Requirement (SR) has a specified Frequency in which the Surveillance must be met in order to meet the associated Limiting Condition for Operation (LCO). An understanding of the correct application of the specified Frequency is necessary for compliance with the SR.
The "specified Frequency" is referred to throughout this section and each of the Specifications of Section 3.0, Surveillance Requirement (SR)
Applicability. The "specified Frequency" consists of the requirements of the Frequency column of each SR.
Situations where a Surveillance could be required (i.e., its Frequency could expire), but where it is not possible or not desired that it be performed until sometime after the associated LCO is within its Applicability, represent potential SR 3.0.4 conflicts. To avoid these conflicts, the SR (i.e., the Surveillance or the Frequency) is stated such that it is only "required" when it can be and should be performed. With an SR satisfied, SR 3.0.4 imposes no restriction.
(continued)
Page 11 of 32
Frequency 1.4 1.4 Frequency (continued)
EXAMPLES The following examples illustrate the various ways that Frequencies are specified.
EXAMPLE 1.4-1 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY Verify pressure within limit. 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> Example 1.4-1 contains the type of SR most often encountered in the Technical Specifications (TS). The Frequency specifies an interval (12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />) during which the associated Surveillance must be performed at least one time. Performance of the Surveillance initiates the subsequent interval. Although the Frequency is stated as 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, an extension of the time interval to 1.25 times the interval specified in the Frequency is allowed by SR 3.0.2 for operational flexibility. The measurement of this interval continues at all times, even when the SR is not required to be met per SR 3.0.1 (such as when the equipment or variables are outside specified limits, or the facility is outside the Applicability of the LCO). If the interval specified by SR 3.0.2 is exceeded while the facility is in a condition specified in the Applicability of the LCO, the LCO is not met in accordance with SR 3.0.1.
If the interval as specified by SR 3.0.2 is exceeded while the facility is not in a condition specified in the Applicability of the LCO for which performance of the SR is required, the Surveillance must be performed within the Frequency requirements of SR 3.0.2 prior to entry into the specified condition. Failure to do so would result in a violation of SR 3.0.4 (continued)
Page 12 of 32
Frequency 1.4 1.4 Frequency (continued)
EXAMPLES (continued) EXAMPLE 1.4-2 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY Verify flow is within limits. Once within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> prior to starting activity AND 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> thereafter Example 1.4-2 has two Frequencies. The first is a one time performance Frequency, and the second is of the type shown in Example 1.4-1. The logical connector "AND" indicates that both Frequency requirements must be met. Each time the example activity is to be performed, the Surveillance must be performed within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> prior to starting the activity.
The use of "once" indicates a single performance will satisfy the specified Frequency (assuming no other Frequencies are connected by "AND").
This type of Frequency does not qualify for the 25% extension allowed by SR 3.0.2.
"Thereafter" indicates future performances must be established per SR 3.0.2, but only after a specified condition is first met (i.e., the "once" performance in this example). If the specified activity is canceled or not performed, the measurement of both intervals stops. New intervals start upon preparing to restart the specified activity.
Page 13 of 32
Approved Contents 2.0 2.0 APPROVED CONTENTS 2.1 Cask contents shall be limited to SPENT NUCLEAR FUEL initially approved by the NRC in Appendix [X.XX] of the FSAR, through the issuance of a cask Certificate of Compliance.
2.2 Proposed alternatives to contents listed in Appendix [X.XX] of the FSAR may be authorized by the Director of The Office of Nuclear Material Safety and Safeguards or designee. The request for such alternative contents should demonstrate that:
- 1. The proposed alternative contents would provide an acceptable level of safety, and
- 2. The proposed alternative contents are consistent with the applicable requirements.
Requests for alternatives to contents shall be submitted in accordance with 10 CFR 72.4.
[A description of the fuel parameters to be listed in Appendix [X.XX] is provided below:
Fissile Isotopes (UO2 vs. MOX)
Maximum Initial [Planar Average] Enrichment Fuel Class (e.g., 14x14, 15x15)
Number of Fuel Rods Number of Water Holes Maximum Assembly Average Burnup Minimum Cooling Time after Reactor Shutdown Minimum Active Fuel Average Enrichment Cladding Material Non-Fuel Hardware (e.g., BPRA/TPAs (cooling time and burnup))
Maximum Weight per Storage Location (including fuel channels and non-fuel hardware)
Maximum Decay Heat per Storage Location Fuel Condition (intact, damaged or debris)
To change these parameters requires NRC approval. All other fuel parameters, also identified in the FSAR, can be changed through the 10 CFR 72.48 process. The parameter list may need to be modified based on unique features of a particular design or for specialized areas such as high burnup fuel and burnup credit. This list is intended for intact fuel. As a result, the list may need to be modified if damaged fuel or fuel debris is stored in the cask.
When preferential loading configurations are part of the design basis, they need to be included in the contents description.]
Page 14 of 32
LCO Applicability 3.0 3.0 LIMITING CONDITION FOR OPERATION (LCO) APPLICABILITY LCO 3.0.1 LCOs shall be met during specified conditions in the Applicability, except as provided in LCO 3.0.2.
LCO 3.0.2 Upon discovery of a failure to meet an LCO, the Required Actions of the associated Conditions shall be met.
If the LCO is met or is no longer applicable prior to expiration of the specified Completion Time(s), completion of the Required Action(s) is not required, unless otherwise stated.
LCO 3.0.3 Not applicable.
LCO 3.0.4 When an LCO is not met, entry into a specified condition in the Applicability shall not be made except when the associated ACTIONS to be entered permit continued operation in the specified condition in the Applicability for an unlimited period of time. This Specification shall not prevent changes in specified conditions in the Applicability that are required to comply with ACTIONS or that are related to the unloading of an SFSC.
LCO 3.0.5 Not applicable.
Page 15 of 32
SR Applicability 3.0 3.0 SURVEILLANCE REQUIREMENT (SR) APPLICABILITY SR 3.0.1 SRs shall be met during the specified conditions in the Applicability for individual LCOs, unless otherwise stated in the SR. Failure to meet a Surveillance, whether such failure is experienced during the performance of the Surveillance or between performances of the Surveillance, shall be failure to meet the LCO. Failure to perform a Surveillance within the specified Frequency shall be failure to meet the LCO except as provided in SR 3.0.3. Surveillances do not have to be performed on equipment or variables outside specified limits.
SR 3.0.2 The specified Frequency for each SR is met if the Surveillance is performed within 1.25 times the interval specified in the Frequency, as measured from the previous performance or as measured from the time a specified condition of the Frequency is met.
For Frequencies specified as once, the above interval extension does not apply.
If a Completion Time requires periodic performance on a once per... basis, the above Frequency extension applies to each performance after the initial performance.
Exceptions to this Specification are stated in the individual Specifications.
SR 3.0.3 If it is discovered that a Surveillance was not performed within its specified Frequency, then compliance with the requirement to declare the LCO not met may be delayed, from the time of discovery, up to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or up to the limit of the specified Frequency, whichever is less. This delay period is permitted to allow performance of the Surveillance.
If the Surveillance is not performed within the delay period, the LCO must immediately be declared not met, and the applicable Condition(s) must be entered.
When the Surveillance is performed within the delay period and the Surveillance is not met, the LCO must immediately be declared not met, and the applicable Condition(s) must be entered.
SR 3.0.4 Entry into a specified condition in the Applicability of an LCO shall not be made unless the LCO's Surveillances have been met within their specified Frequency.
This provision shall not prevent entry into specified conditions in the Applicability that are required to comply with Actions or that are related to the unloading of an SFSC.
Page 16 of 32
Fuel Integrity During Drying 3.1.1 3.1 Fuel Integrity 3.1.1 Fuel Integrity During Drying LCO 3.1.1 The time after draining the [CANISTER/Cask] and before helium backfill operation is complete shall not exceed [X] days [the vacuum drying time may be a function of decay heat in a table or chart].
[NOTE: The time specification [X] may be relocated to an administrative program if a methodology for calculating fuel temperature based on decay heat and heatup time is approved by the NRC.]
APPLICABILITY: During LOADING OPERATIONS.
ACTIONS:
NOTE------------------------------------------------------------
Separate Condition entry is allowed for each [CANISTER/Cask].
COMPLETION CONDITION REQUIRED ACTION TIME A. LCO not met. A.1 Verify adequate heat Immediately removal to prevent exceeding a short-term fuel temperature limit.
AND A.2 Complete helium backfill [X] days operation.
B. Required Actions B.1 Place [CANISTER/Cask] in Immediately and associated [a safe condition. The Completion Times not applicant shall propose an met. appropriate condition and completion time for its design.]
(continued)
Page 17 of 32
Fuel Integrity During Drying 3.1.1 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.1.1 Verify the time after draining the [CANISTER/Cask] Once, prior to and before helium backfill operation is completed TRANSPORT is [X] days. SR 3.0.4 does not apply. operations Page 18 of 32
Fuel Integrity During Backfill and Transfer 3.1.2 3.1 Fuel Integrity 3.1.2 Fuel Integrity During Backfill and Transfer LCO 3.1.2 The time after completion of helium backfill operation and until the CANISTER is inserted into the storage cask shall not exceed [X] days [the time may be a function of decay heat in a table or chart].
[NOTE: This LCO may not be needed if the associated casks and approved contents provide adequate cooling to prevent approaching short-term fuel temperature limits. The time specification [X] may be relocated to an administrative program if a methodology for calculating fuel temperature based on decay heat and heatup time is approved by the NRC. A similar type LCO may be needed for UNLOADING operations.]
APPLICABILITY: During LOADING OPERATIONS.
ACTIONS:
NOTE------------------------------------------------------------
Separate Condition entry is allowed for each CANISTER.
COMPLETION CONDITION REQUIRED ACTION TIME A. LCO not met. A.1 Verify adequate heat removal to Immediately prevent exceeding a short-term fuel temperature limit.
AND A.2 Complete CANISTER transfer. [X] days B. Required Actions B.1 Place CANISTER in [a safe Immediately and associated condition. The applicant shall Completion Times not propose an appropriate met. condition and completion time for its design.]
(continued)
Page 19 of 32
Fuel Integrity During Backfill and Transfer 3.1.2 SURVEILLANCE FREQUENCY SR 3.1.2 Verify that the time after completion of helium backfill Once, prior to operation and until insertion of the CANISTER into TRANSPORT the storage cask is [X] days. SR 3.0.4 does not operations apply.
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SFSC Heat Removal System 3.1.3 Note: this LCO is only applicable to cask designs with cooling vents.
3.1 Fuel Integrity 3.1.3 SFSC Heat Removal System LCO 3.1.3 The SFSC Heat Removal System shall be OPERABLE APPLICABILITY: While CANISTER is in the storage OVERPACK.
ACTIONS:
NOTE---------------------------------------------------------
Separate Condition entry is allowed for each SFSC.
COMPLETION CONDITION REQUIRED ACTION TIME A. LCO not met. A.1 Restore SFSC Heat Removal [8] hours System to OPERABLE status.
OR A.2.1 Verify adequate heat removal to prevent Immediately exceeding short-term fuel temperature limit; AND A.2.2 Restore SFSC Heat Removal System to [30] days OPERABLE status.
B. Required Actions B.1 Place SFSC in [a safe Immediately and associated Completion condition. The applicant shall Times not met. propose an appropriate condition and completion time for its design.]
(continued)
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SFSC Heat Removal System 3.1.3 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.1.3 Verify all OVERPACK inlet and outlet air ducts are free of [24] hours blockage.
OR For OVERPACKS with temperature monitoring [24] hours equipment, verify the difference between the average OVERPACK air outlet temperature and ISFSI ambient temperature is [ XXo F or C].
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Cask Interseal Pressure 3.2.1 Note: Required only for those casks with bolted closures and an interseal pressure monitoring system.
3.2 Cask Integrity 3.2.1 Cask Interseal Pressure LCO 3.2.1 The cask interseal minimum pressure shall be maintained at the value listed in Section xxxx of the FSAR, as updated.
APPLICABILITY: During STORAGE OPERATIONS.
ACTION:
NOTE---------------------------------------------------------
Separate Condition entry is allowed for each SFSC.
COMPLETION CONDITION REQUIRED ACTION TIME A. Cask interseal pressure A.1 Re-establish cask interseal [7] days below limit. pressure above limit.
B. Required Action and B.1 Place SFSC in [a safe [30] days associated Completion condition. The applicant shall time not met. propose an appropriate condition and completion time for its design.]
(continued)
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Cask Interseal Pressure 3.2.1 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.2.1 Verify cask interseal helium pressure above limit. [7] days SR 3.2.2 Perform a channel operational test to verify proper Once, within [7]
function of pressure switch/transducer on cask days of overpressure system. commencing storage operations and every [36]
months thereafter Page 24 of 32
Dissolved Boron Concentration 3.3.1 Note: Required only for those casks that take credit for boron in the water for criticality control.
Not needed for BWR plants.
3.3 Cask Criticality Control Program 3.3.1 Dissolved Boron Concentration LCO 3.3.1 The dissolved boron concentration in the water of the [CANISTER/Cask] cavity shall be [XXX] ppmb.
[NOTE: The boron concentration [XXX] may be relocated to an administrative program if a methodology for calculating k-eff of the spent fuel storage [CANISTER/Cask] is approved by the NRC.]
APPLICABILITY: During LOADING OPERATIONS and UNLOADING OPERATIONS with water and at least one fuel assembly in the [CANISTER/Cask]
ACTIONS:
COMPLETION CONDITION REQUIRED ACTION TIME A. Dissolved boron A.1 Suspend loading of fuel Immediately concentration not met. assemblies into cask and any other actions that increase reactivity.
AND A.2 Restore boron concentration to Immediately exceed limit.
AND A.3 Remove all fuel assemblies [24] hours from cask.
(continued)
Page 25 of 32
Dissolved Boron Concentration 3.3.1 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.3.1.1 Verify the dissolved boron concentration is met using Within [4] hours two independent measurements. prior to commencing LOADING OPERATIONS AND every [48] hours thereafter while the cask is in the spent fuel pool or while water is in the cask SR 3.3.1.2 Verify the dissolved boron concentration is met using Within [4] hours two independent measurements. prior to commencing UNLOADING OPERATIONS AND every [48] hours thereafter while the cask is in the spent fuel pool or while water is in the cask Page 26 of 32
[CANISTER/Cask] Water Temperature 3.3.2 Note: This specification is only required if:
- a. Boron credit is assumed in the criticality analysis, and/or
- b. Optimum moderation is not assumed in the criticality analysis.
3.3.2 [CANISTER/Cask] Water Temperature LCO 3.3.2 The temperature of the water in the canister shall be 200 F [alternatively, in lieu of a temperature limit, a time limit can be applied that is based on decay heat].
APPLICABILITY: During LOADING and UNLOADING OPERATIONS.
ACTIONS:
NOTE----------------------------------------------------------
Separate Condition entry is allowed for each [CANISTER/Cask] system.
COMPLETION CONDITION REQUIRED ACTION TIME A. [CANISTER/Cask] water A.1 Restore [CANISTER/Cask] [2] hours temperature limit not met. water temperature to below limit.
B. Required Action and B.1 Place [CANISTER/Cask] in [a Immediately Associated Completion safe condition. The applicant time not met. shall propose an appropriate condition and completion time for its design.]
(continued)
Page 27 of 32
CANISTER Water Temperature 3.3.2 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.3.2 Verify temperature of the water in the [CANISTER/Cask] Once within [18]
has not exceeded 200 F. hours after
[TRANSFER CASK with loaded CANISTER/Cask]
is removed from fuel pool AND Every [30] minutes thereafter Page 28 of 32
Design Features 4.0 4.0 DESIGN FEATURES 4.1 Design Features Significant to Safety 4.1.1 Criticality Control
[Items listed in 4.1.1 are those which would have a significant effect on safety if altered or modified. Item 1 and/or 2 may be removed if the application includes an analysis which shows that the parameter does not significantly affect criticality safety in the particular design.]
- 1. Flux trap size or fuel cell spacing: > [X.XX] in.
10
- 2. B loading in the Boral neutron absorbers: > [X.XX] g/cm2
[4.1.2 Materials
- 1. Protective coatings used inside the cask
- 2. Neutron Absorbers and Shields
- 3. Containment Boundary Seals Instead of specifying a material directly, the applicant may propose a set of performance standards along with proposed methods for determining that the material will meet the applicable standards.
Note: Section 4.1.2 may be incorporated into the Cask Description in Condition 1.b. of the Certificate of Compliance if the applicant prefers.]
4.2 Codes and Standards The following provides information on the governing codes for components of the [XXX ] cask design:
Cask Component Applicable Codes Editions/Years Important to Safety
[XXXX] [XXXXXX] [XXXXX]
4.2.1 Alternatives to Codes, Standards, and Criteria Table [X.XX ] of the FSAR lists approved alternatives to the [code(s) of record] for the design of the Cask System.
(continued)
Page 29 of 32
Design Features 4.0 4.2.2 Construction/Fabrication Alternatives to Codes, Standards, and Criteria Proposed alternatives to the [code(s) of record] including alternatives allowed by Table X.XX of the FSAR may be used when authorized by the Director of the Office of Nuclear Material Safety and Safeguards or designee. The request for such alternatives should demonstrate that:
- 1. The proposed alternatives would provide an acceptable level of quality and safety, or
- 2. Compliance with the specified requirements of the [code of record] would result in hardship or unusual difficulty without a compensating increase in the level of quality and safety.
Requests for alternatives shall be submitted in accordance with 10 CFR 72.4.
4.3 Structural Performance 4.3.1 Earthquake Loads The spent fuel storage cask design earthquake load on the top surface of the ISFSI pad shall not exceed:
Horizontal Peak Acceleration in Corresponding Vertical Peak each of the two orthogonal Accelerations Directions
[XX] [XX]
4.3.2 Design G-loads The fission product barrier design g-loads due to postulated handling accidents shall not exceed:
Fission Product Barrier End Drop Side Drop Tipover
[Cask and/or CANISTER] [XX] [XX] [XX]
4.4 Cask Handling/ CANISTER Transfer Facility
[Note that certain designs may require a specification for operations outside of the Part 50 facility.]
Page 30 of 32
Administrative Controls 5.0 5.0 ADMINISTRATIVE CONTROLS 5.1 Administrative Programs The following programs shall be established, implemented, and maintained:
5.1.1 Radioactive Effluent Control Program A program shall be established that includes:
- 1. Implementation of the requirements of [10 CFR 72.44(d) or 72.126, as appropriate].
- 2. Limits on the surface contamination and verification of meeting those limits prior to removal of the cask from the Part 50 structure,
- 3. Limits on the leakage rate and verification of meeting those limits prior to removal of the cask from the Part 50 structure, and,
- 4. An effluent monitoring program, if the surface contamination limits are greater than the values specified in [Regulatory Guide 1.86 or an NRC-approved methodology in the FSAR can be inserted in place of RG-1.86]; or if the leakage rate limits are greater than the values specified as leaktight in [ANSI N14.5 -
1997 Leakage Tests on Packages for Shipment or an NRC-approved methodology in the FSAR can be inserted in place of ANSI N14.5].
5.1.2 Cask Loading, Unloading, and Preparation Program A program shall be established to implement the FSAR requirements for loading fuel and components into the cask, unloading fuel and components from the cask, and preparing the cask for storage. The requirements of the program for loading and preparing the cask shall be complete prior to removing the cask from the 10 CFR Part 50 structure. [Items 1, 5, and 6 are associated with requirements that will remain in the STS, however, the process for establishing the specified action limit may be moved to this administrative program if a method of evaluation acceptable to the NRC is presented in the FSAR. Items 2, 3, and 4 have been relocated from the LCO section to this administrative program because it is felt that NRC approved methods of evaluation will be relatively easy to develop. If appropriate methods are not presented in the FSAR, these items will retain LCOs.]
At a minimum, the program shall establish criteria that need to be verified to address FSAR commitments and regulatory requirements for:
- 1. Vacuum drying times and pressures to assure that the short-term fuel temperature limits are not violated and the cask is adequately dry,
- 2. Inerting pressure and purity to assure adequate heat transfer and corrosion control,
- 3. Leak testing to assure adequate cask integrity and consistency with the offsite dose analysis, (continued)
Page 31 of 32
Administrative Controls 5.0 5.0 Administrative Controls (continued)
- 4. Surface dose rates to assure proper loading and consistency with the offsite dose analysis,
- 5. Ambient and pool water temperature to assure adequate subcriticality and material ductility,
- 6. Spent fuel pool boron concentration to verify the acceptable subcriticality margin, and
- 7. [Clad oxidation thickness for high-burnup fuel in accordance with ISG-11 or other NRC-approved methodology if high-burnup fuel is included in the contents.]
The program shall include compensatory measures and appropriate completion times if the program requirements are not met.
5.1.3 ISFSI Operations Program A program shall be established to implement the FSAR requirements for ISFSI Operations.
At a minimum, the program shall establish criteria that need to be verified for:
- 1. Minimum cask center-to-center spacing,
- 2. Pad parameters (i.e., pad thickness, concrete strength, soil modulus, reinforcement, etc.) that are consistent with the FSAR analysis, and
- 3. Maximum lifting heights for the cask system to ensure that the g-load limits in the table in Section 4.3.2 are met for the design basis events.
Page 32 of 32