ML21127A083
| ML21127A083 | |
| Person / Time | |
|---|---|
| Site: | 07201021 |
| Issue date: | 07/29/2021 |
| From: | John Mckirgan Storage and Transportation Licensing Branch |
| To: | Martinez T Office of Nuclear Material Safety and Safeguards, TN Americas LLC |
| CJJacobs NMSS/DFM/STL 301.415.6825 | |
| Shared Package | |
| ML21127A078 | List: |
| References | |
| Download: ML21127A083 (41) | |
Text
TN-32 GENERIC TECHNICAL SPECIFICATION TN-32 Technical Specifications Renewed Amendment 0
TABLE OF CONTENTS 1.0 USE AND APPLICATION ............................................................................................................ 1.1-1 1.1 DEFINITIONS ...................................................................................................................... 1.1-1 1.2 LOGICAL CONNECTORS .................................................................................................. 1.2-1 1.3 COMPLETION TIMES ......................................................................................................... 1.3-1 1.4 FREQUENCY ...................................................................................................................... 1.4-1 2.0 FUNCTIONAL AND OPERATING LIMITS .................................................................................. 2.0-1 2.1 FUEL TO BE STORED IN THE TN-32 CASK ..................................................................... 2.0-1 2.2 FUNCTIONAL AND OPERATING LIMITS VIOLATIONS ................................................... 2.0-1 3.0 LIMITING CONDITION FOR OPERATION (LCO) APPLICABILITY ........................................... 3.0-1 3.0 SURVEILLANCE REQUIREMENT (SR) APPLICABILITY .......................................................... 3.0-2 3.1 CASK INTEGRITY ............................................................................................................... 3.1-1 3.1.1 Cask Cavity Vacuum Drying ...................................................................................... 3.1-1 3.1.2 Cask Helium Backfill Pressure................................................................................... 3.1-3 3.1.3 Cask Helium Leak Rate ............................................................................................. 3.1-4 3.1.4 Combined Helium Leak Rate ..................................................................................... 3.1-5 3.1.5 Cask Interseal Pressure ............................................................................................ 3.1-6 3.1.6 Cask Minimum Lifting Temperature ........................................................................... 3.1-7 3.2 CASK RADIATION PROTECTION...................................................................................... 3.2-1 3.2.1 Cask Surface Contamination ..................................................................................... 3.2-1 3.3 CASK CRITICALITY CONTROL ......................................................................................... 3.3-1 3.3.1 Dissolved Boron Concentration ................................................................................. 3.3-1 4.0 DESIGN FEATURES ................................................................................................................... 4.0-1 4.1 STORAGE CASK ................................................................................................................ 4.0-1 4.1.1 Criticality .................................................................................................................... 4.0-1 4.1.2 Structural Performance .............................................................................................. 4.0-1 4.1.3 Codes and Standards ................................................................................................ 4.0-1 4.1.4 Helium Purity.............................................................................................................. 4.0-2 4.2 STORAGE PAD ................................................................................................................... 4.0-2 4.2.1 Storage Locations for Casks ...................................................................................... 4.0-2 4.2.2 Pad Properties to Limit Cask Gravitational Loadings Due to Postulated Drops ......................................................................................................................... 4.0-2 4.3 SITE SPECIFIC PARAMETERS AND ANALYSES ............................................................ 4.0-2 5.0 ADMINISTRATIVE CONTROLS ................................................................................................. 5.0-1 5.1 TRAINING MODULE ........................................................................................................... 5.0-1 5.2 PROGRAMS ........................................................................................................................ 5.0-1 5.2.1 Cask Sliding Evaluation ............................................................................................. 5.0-2 5.2.2 Cask Transport Evaluation Program ......................................................................... 5.0-2 5.2.3 Cask Surface Dose Rate Evaluation Program .......................................................... 5.0-2 5.2.4 Aging Management Program ..................................................................................... 5.0-4 TN-32 Technical Specifications i Renewed Amendment 0
Definitions 1.1 1.0 USE AND APPLICATION 1.1 Definitions
-- 1 ------
0--- -S-----------
-N TIONJ r!!!! - ----- - ---------------
The defined terms of this section appear in capitalized type and are applicable throughout these Technical Specifications and Bases.
Term Definition ACTIONS ACTIONS shall be that part of a Specification that prescribes Required Actions to be taken under designated Conditions within specifie t Completion Times.
CHANNEL OPERATIONAL TEST (COT)
A CHANNEL OPERATIONAL TEST (COT) shall be the injection of a simulated or actual signal into the channel as close to the sensor as practicable to verify the operability of required alarm functions. The COT shall include adjustments, as necessary, of the required alarm setpoint so that the setpoint is within the required range and accuracy.
INTACT FUEL ASSEMBLY Spent Nuclear Fuel Assemblies without known or suspected cladding defects greater than pinhole leaks or hairline cracks and which can be handled by normal means. Partial fuel assemblies, that is fuel assemblies from which fuel rods are missing, shall not be classified as INTACT FUEL ASSEMBLIES unless dummy fuel rods are used to displace an amount of water equal to or greater than that displaced by the original fuel rod(s).
LOADING OPERATIONS LOADING OPERATIONS include all licensed activities on a cask while it is being loaded with fuel assemblies. LOADING OPERATIONS begin when the first fuel assembly is placed in the cask and end when the cask is supported by the transporter.
STORAGE OPERATIONS STORAGE OPERATIONS include all licensed activities that are performed at the Independent Spent Fuel Storage Installation (ISFSI) while a cask containing spent fuel is sitting on a storage pad within the ISFSI.
TRANSPORT OPERATIONS TRANSPORT OPERATIONS include all licensed activities performed on a cask loaded with one or more fuel assemblies when it is being moved to and from the ISFSI. TRANSPORT OPERATIONS begin when the cask is first suspended from the transporter and end when the cask is at its destination and no longer supported by the transporter.
UNLOADING OPERATIONS UNLOADING OPERATIONS include all licensed activities on a cask while fuel assemblies are being unloaded. UNLOADING OPERATIONS begin when the cask is no longer supported by the transporter and end when the last fuel assembly is removed from the cask.
TN-32 Technical Specifications 1.1-1 Renewed Amendment 0
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.
EXAMPLES The following examples illustrate the use of logical connectors:
EXAMPLE 1.2-1:
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. LCO not met. A.1 Verify...
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.
TN-32 Technical Specifications 1.2-1 Renewed Amendment 0
Logical Connectors 1.2 1.2 Logical Connectors EXAMPLES EXAMPLE 1.2-2:
(continued)
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. LCO not met. A.1 Stop...
OR A.2.1 Verify...
AND A.2.2.1 Reduce...
OR A.2.2.2 Perform...
4.
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.
TN-32 Technical Specifications 1.2-2 Renewed Amendment 0
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 minimum requirements for ensuring safe operation of the cask. 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 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 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.
TN-32 Technical Specifications 1.3-1 Renewed Amendment 0
Completion Times 1.3 1.3 Completion Times EXAMPLES The following examples illustrate the use of Completion Times with different types of Conditions and changing Conditions:
EXAMPLE 1.3-1:
1 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME L. Required Action B.1 Perform Action B.I. 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and associated Completion Time AND not met.
B.2 Perform Action B.2 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> 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 to 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 />.
TN-32 Technical Specifications 1.3-2 Renewed Amendment 0
Completion Times 1.3 1.3 Completion Times EXAMPLES EXAMPLE 1.3-2:
(continued)
ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. One system not A.1 Restore system to within 7 days within limit limit.
B. Required Action B.1 Perform Action B.1. 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and associated Completion Time AND not met.
B.2 Perform Action B.2. 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> When a system is determined to not meet the LCO, Condition A is entered. Ifthe 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, Condition A and B are exited, and therefore, the Required Actions of Condition B may be terminated.
TN-32 Technical Specifications 1.3-3 Renewed Amendment 0
-4 Completion Times 1.3 1.3 Cornpletion Times 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 Perform Action B.1. 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and associated Completion Time AND not met.
B.2 Perform Action B.2. 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> 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 does not meet the LCO, Condition A is entered and its Completion Time starts. If subsequent components are determined Not to 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 COMPLETION TIME Required Action should be pursued without delay and in a controlled manner.
TN-32 Technical Specifications 1.3-4 Renewed Amendment 0
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, as well as certain Notes in the Surveillance column that modify performance requirements.
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.
The use of "met" or "performed" in these instances conveys specific meanings.
A Surveillance is "met" only when the acceptance criteria are satisfied. Known failure of the requirements of a Surveillance, even without a Surveillance specifically being "performed," constitutes a Surveillance not "met."
TN-32 Technical Specifications 1.4-1 Renewed Amendment 0
Frequency 1.4 1.4 Frequency 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 is determined to not meet the LCO, a variable is outside specified limits, or the unit is outside the Applicability of the LCO). If the interval specified by SR 3.0.2 is exceeded while the cask is in a condition specified in the Applicability of the LCO, the LCO is not met in accordance with SR 3.0.1.
Ifthe interval as specified by SR 3.0.2 is exceeded while the unit 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.
TN-32 Technical Specifications I.4-2 Renewed Amendment 0
Frequency 1.4 1.4 Frequency EXAMPLES EXAMPLE 1.4-2:
(continued)
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 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.
TN-32 Technical Specifications 1.4-3 Renewed Amendment 0
Functional and Operating Umits 2.0 2.0 Functional and Operating Limits 2.1 Fuel To Be Stored In The TN-32 Cask The spent nuclear fuel to be stored in the TN-32 cask shall meet the following requirements:
- a. Fuel shall be unconsolidated INTACT FUEL ASSEMBLIES.
- b. Fuel shall be limited to fuel with zircaloy cladding.
- c. Fuel types shall be limited to the fuel types below with maximum uranium content as follows:
Westinghouse 14xl 4 Std ZCA and ZCB: 0.4144 MTU/assy.
Westinghouse 15x15: 0.4671 MTU/assy.
Westinghouse 17x17 Std: 0.4671 MTU/assy.
Westinghouse 14x1 4 OFA: 0.3611 MTU/assy.
Westinghouse 17x17 OFA: 0.4282 MTU/assy.
- d. Fuel may include burnable poison rod assemblies (BPRA's) having the acceptable combination of burnup and cooling time described by Figure 2.1.1-1.
- e. Fuel may include thimble plug assemblies (TPA's) having the acceptable combination of bumup and cooling time described by Figure 2.1.1-2.
- f. Fuel assemblies shall have the following bounding characteristics:
- i. The maximum initial enrichment shall not exceed 4.05 weight percent.
H. The maximum assembly average bumup shall not exceed 45,000 MWD/MTU iii. The minimum cooling time prior to loading shall be as specified in Table 2.1.1-1.
iv. The maximum heat load per assembly shall not exceed 1.02 kW.
- v. The fuel assembly weight with hardware shall not exceed 1533 lbs.
2.2 Functional and Operating Limits Violations If any Functional and Operating Limit of 2.1 is violated, the following actions shall be completed:
2.2.1 The affected fuel assemblies shall be removed from the cask and placed in a safe condition.
2.2.2 Within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, notify the NRC Operations Center.
2.2.3 Within 30 days, submit a special report which describes the cause of the violation and the actions taken to restore compliance and prevent recurrence.
TN-32 Technical Specifications 2.0-1 Renewed Amendment 0
Functional and Operating Limits 2.0 Table 2.1.1-1 Minimum Acceptable Cooling Time as a Function of Burnup and Initial Enrichment Min. Init. Enrichment Maximum Bumu GWd/MTU(2)
M wt)(1) 151201303233X341351383738 3940 41 42 43 444 1.2 7 7 1.4 7 7 789 1.6 7777899 1.7 777 7 8 8 8 8 99910 1.7 7 7 7 7 8 8 8 8 9 9 910 "-'-"
1.8 7 777 78 88 99910 1.9 7 7 7 7 7* 7 8 8 8 9 9 9 1010 .....,-
2.0 7 7 7 7 7 7 8 8 8 8 9 919 10 2.1 77 777,778889 991 10 2.2 77777777888 999010 2.3 777777778889991010 2.4 77777 777888 89991010 2.5 77 7 7 717 7 7 7 88 8 8 9 9 9 10 2.6 7 7 7 7 7 7 7 7 7 77 8 8 8 8 9 910 2.7 77777777778888999 2.8 77777777 7788889 99 2.9 7777 77777 778888 99 3.0 77777777777788899 3.1 77777777777788899 3.2 77777777777778888 3.3 7 7 7 7 7 77 7 7 7 7 7 77 8 8 8 3.4 777777 77777777888 3.5 7 777771777777777777 3.6 777777177777777777 3.7 777777 77777777777 3.8 777777 777717 777777 3.9 777777 77777777777 4.05 7 77.7 7 7 7 7771717 717 77 H - not evaluated (1) Round actual value down to next lower tenth.
(2) Round actual value up to next higher GWd/MTU.
TN-32 Technical Specifications 2.0-2 Renewed Amendment 0
Functional and Operating Limits 2.0 2200 2100 2000 1900 1800 1700 1600 8.
°N 1500 -- ACCEPTABLE - _
1400 U 1300 tN 1200 1100 1000 I
V 900 800 700 UNACCEPTABLE 600 500 400 300 200 100 0
3G)000 35000 40000 45000 50000 55000 60000 Burnup (MWd/MTU)
Figure 2.1.1-1 Burnable Poison Rod Assemblies (BPRAs)
Minimum Acceptable Cooling Time as a Function of Bumup TN-32 Technical Specifications 2.0-3 Renewed Amendment 0
Functional and Operating Uimits 2.0 7500 7000 ma I
6500 ACCEPTABLE U,
U C
6000 U,
U, C 5500 5000 ma C UNACCEPTABLE C
U 4500 C
=
E 4000 3500 3000 45 ,000 95,000 145,000 195,000 Burnup (MWd/MTU)
Figure 2.1.1-2 Thimble Plug Assemblies (TPAs)
Minimum Acceptable Cooling Time as a Function of Bumup TN-32 Technical Specifications 2.0-4 Renewed Amendment 0
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, except as provided in LCO 3.0.5.
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 to a cask.
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 a cask.
Exceptions to this Specification are stated in the individual Specifications. These exceptions allow entry into specified conditions in the Applicability when the associated ACTIONS to be entered allow operation in the specified condition in the Applicability only for a limited period of time.
. ý w:
LCO 3.0.5 Equipment removed from service or not in service in compliance with ACTIONS may be returned to service under administrative control solely to perform testing required to demonstrate it meets the LCO or that other equipment meets the LCO. This is an exception to LCO 3.0.2 for the system returned to service under administrative control to perform the testing required to demonstrate that the LCO is met.
LCO 3.0.6 Not applicable to a cask.
LCO 3.0.7 Not applicable to a cask.
TN-32 Technical Specifications 3.0-1 Renewed Amendment 0
LCO 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 foireach SR is met ifthe 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 "nonce 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 a cask.
TN-32 Technical Specifications 3.0-2 Renewed Amendment 0
Cask Integrity LCOs 3.1 3.1 CASK INTEGRITY 3.1.1 Cask Cavity Vacuum Drying LCO 3.1.1 The cask cavity vacuum drying pressure shall be sustained at or below 4 mbar absolute for a period of at least 30 minutes after isolation from the pumping system.
APPLICABILITY: During LOADING OPERATIONS ACTIONS Separate Condition ei iry is allowec! for each cask.
APPLI--BILITY:-During-LOADING OPERATION CONDITION REQUIRED ACTION COMPLETION TIME
.NOTE -------- --
Not applicable until SR 3J1.1.1 is ---..------ NOTE--------
performed. Action A.1 applies until helium is removed for subsequent A. Cask cavity vacuum drying operations.
pressure limit not met.
A.1 Achieve or maintain a 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> nominal helium environment in the cask AND 96 hours0.00111 days <br />0.0267 hours <br />1.587302e-4 weeks <br />3.6528e-5 months <br /> A.2 Establish cask cavity drying pressure within limits.
B. Required Action A.1 and B.1 Remove all fuel assemblies 7 days associated Completion Time not from the cask.
met.
TN-32 Technical Specifications 3.1-1 Renewed Amendment 0
Cask Integrity LCOs 3.1 C. Required Action A.2 and C.1 Remove all fuel assemblies 30 days associated Completion Time not from the cask.
met.
SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.1.1.1 Verify that the equilibrium cask cavity vacuum drying pressure Once, within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of is brought to < 4 mbar absolute for at least 30 minutes. completion of cask draining.
TN-32 Technical Specifications 3.1-2 Renewed Amendment 0
Cask Integrity LCOs 3.1 3.1 CASK INTEGRITY 3.1.2 Cask Helium Backfill Pressure LCO 3.1.2 The cask cavity shall be filled with helium to a pressure of 2230 mbar absolute (+/- 100 mbar).
APPLICABILITY: During LOADING OPERATIONS ACTIONS S-parat--C-- diti-n entry-------
is alNOTE Separate Condition entry is allowed for each cask.
CONDITION REQUIRED ACTION COMPLETION TIME NOTE --------------- NOTE---
Not applicable until SR 3.1.2.1 is Action A.1 applies until helium is performed. removed for subsequent
. operations A. Cask initial helium backfill pressure -------------................
limit not met. A.1 Achieve or maintain a 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> nominal helium environment in the cask AND 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> A.2 Establish cask cavity backfill pressure within limits.
B. Required Action A.1 and B.1 Remove all fuel assemblies 7 days associated Completion Time not from the cask.
met.
C. Required Action A.2 and associated C.1 Remove all fuel assemblies 30 days Completion Time not met. from the cask.
SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.1.2.1 Verify that the cask cavity helium pressure is 2230 mbar Once, within 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> of absolute (+/- 100 mbar). completion of cask draining.
TN-32 Technical Specifications 3.1-3 Renewed Amendment 0
Cask Integrity LCOs 3.1 3.1 CASK INTEGRITY 3.1.3 Cask Helium Leak Rate LCO 3.1.3 The combined helium leak rate for all closure seals shall not exceed 1.0 E-5 std cc/sec.
APPLICABILITY: During LOADING OPERATIONS.
ACTIONS
.------- NOTE Separate Condition entry is allowed for each cask.
CONDITION REQUIRED ACTION COMPLETION TIME NOTE ------....
--- ----- A.1 Establish cask helium leak 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> Not applicable until SR 3.1.3.1 is rate within limit.
performed.
A. Cask helium leak rate not met.
B. Required Action A.1 and B.1 Remove all fuel assemblies 30 days associated Completion Time are from cask.
not met.
SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.1.3.1 Verify the cask helium leak rate is within the limit. Once, prior to TRANSPORT OPERATIONS.
TN-32 Technical Specifications 3.1-4 Renewed Amendment 0
Cask Integrity LCOs 3.1 3.1 CASK INTEGRITY 3.1.4 Combined Helium Leak Rate LCO 3.1.4 The combined helium leak rate for all closure seals and the overpressure system shall not exceed 1.0 E-5 std cc/sec.
APPLICABILITY: During STORAGE.
ACTIONS Cond Separate................... is allowed f NOTE Separate Condition entry is allowed for each cask.
CONDITION REQUIRED ACTION COMPLETION TIME NOTE ------ - -.-.-. -.---- A.1 Establish combined helium 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> Not applicable until SR 3.1.4.1 is leak rate within limit.
performed.
A. Combined helium leak rate not met.
B. Required Action A.1 and associated B.1 Remove all fuel assemblies 30 days Completion Time are not met. from cask.
SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY
NOTE ------------------------
This surveillance may be combined with SR 3.1.3.1. Once prior to
..-.--.--.-- .......-------------...........--------------------.....------ TRANSPORT SR 3.1.4.1 Verify the combined helium leak rate is within the limit. OPERATIONS OR Once within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> of commencing STORAGE OPERATIONS.
TN-32 Technical Specifications 3.1-5 Renewed Amendment 0
Cask Integrity LCOs 3.1 3.1 CASK INTEGRITY 3.1.5 Cask Interseal Pressure LCO 3.1.5 Cask interseal pressure shall be maintained at a pressure of at least 3.2 atm abs APPLICABILITY: During STORAGE OPERATIONS.
ACTIONS
NOTE Separate Condition entry is allowed for each cask.
CONDITION REQUIRED ACTION COMPLETION TIME A. Cask interseal pressure below A.1 Reestablish cask interseal 7 days limit, pressure above limit.
B. Required Action A.1 and B.1 Remove all fuel assemblies 30 days associated Completion Time not from cask.
met.
SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.1.5.1 Verify cask interseal helium pressure above limit. 7 days SR 3.1.5.2 Perform a CHANNEL OPERATIONAL TEST (COT) to verify Once, within 7 days of proper functioning of pressure switch / transducer on cask commencing STORAGE overpressure system. OPERATIONS and every 36 months thereafter TN-32 Technical Specifications 3.1-6 Renewed Amendment 0
Cask Integrity LCOs 3.1 3.1 CASK INTEGRITY 3.1.6 Cask Minimum Lifting Temperature LCO 3.1.6 The loaded cask shall not be lifted ifthe outer surface of the cask is below
-200F.
APPLICABILITY: During TRANSPORT OPERATIONS ACTIONS NOTE Separate Condition entry is allowed for each cask.
CONDITION REQUIRED ACTION COMPLETION TIME A. Cask surface temperature below A.1 Lower cask to safe position Immediately limit.
SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.1.6.1 Verify outer surface temperature is above limit. Once, immediately prior to lifting cask and prior to cask transfer to or from ISFSI.
TN-32 Technical Specifications 3.1-7 Renewed Amendment 0
Cask Radiation Protection LCOs 3.2 3.2 CASK RADIATION PROTECTION 3.2.1 Cask Surface Contamination LCO 3.2.1 Removable contamination on the cask exterior surfaces shall not exceed:
- a. 1000 dpm / 100 cm 2 (0.2 Bq / cm2) from beta and gamma sources, and
- b. 20 dpm / 100 cm 2 (0.003 Bq / cm 2) from alpha sources.
APPLICABILITY: During LOADING OPERATIONS ACTIONS
----- .. - 1vt j Separate Condition entry is allowed for each cask.
CONDITION REQUIRED ACTION COMPLETION TIME A. Removable contamination on the A.1 Decontaminate cask Prior to cask exterior surface exceeds either surfaces to below required TRANSPORT limit, levels. OPERATIONS SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.2.1.1 Verify that the removable contamination on the exterior Once, prior to surface of the cask does not exceed the specified limits. TRANSPORT OPERATIONS.
TN-32 Technical Specifications 3.2-1 Renewed Amendment 0
Cask Criticality Control LCOs 3.3 3.3 CASK CRITICALITY CONTROL 3.3.1 Dissolved Boron Concentration LCO 3.3.1 The dissolved boron concentration of the water in the spent fuel pool and the water added to the cavity of a loaded cask shall be at least 2300 ppm.
APPLICABILITY: During LOADING and UNLOADING OPERATIONS ACTIONS
-NOTE.
Separate Condition entry is allowed for each cask.
CONDITION REQUIRED ACTION COMPLETION TIME A. Dissolved boron concentration limit A.1 Suspend loading of fuel Immediately not met. assemblies into cask.
AND A.2 Remove all fuel assemblies 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> from cask.
'.4 TN-32 Technical Specifications 3.3-1 Renewed Amendment 0
Cask Criticality Control LCOs 3.3 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.3.1.1 Verify dissolved boron concentration limit in spent fuel pool Within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> prior to water and water to be added to the cask cavity is met using commencing LOADING two independent measurements. OPERATIONS AND 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> thereafter while the cask is in the spent fuel pool or while water is in cask.
SR 3.3.1.2 Verify dissolved boron concentration limit in spent fuel pool Once, within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> prior water and water to be added to the cask cavity is met using to flooding cask during two independent measurements. UNLOADING OPERATIONS AND 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> thereafter while the cask is in the spent fuel pool or while water is in cask.
TN-32 Technical Specifications 3.3-2 Renewed Amendment 0
Design Features 4.0 4.0 DESIGN FEATURES The specifications in this section include the design characteristics of special importance to each Of the physical barriers and to maintenance of safety margins in the cask design. The principal objective of this category is to describe the design envelope which might constrain any physical changes to essential equipment. Included in this category are the site environmental parameters which provide the bases for design, but are not inherently suited for description as LCOs.
4.1 Storage Cask 4.1.1 Criticality The design of the storage cask, including spatial constraints on adjacent assemblies (minimum basket cell opening of 8.64 in. sq.) and the boron content of the basket material (minimum areal density equal to 10 mg B' 0/cm 2) shall ensure that fuel assemblies are maintained in a subcritical condition with a kffof less than 0.95 under all conditions of operation.
4.1.2 Structural Performance The cask has been evaluated for a cask tipover (equivalent to a side drop of 67 g's) and a bottom end drop resulting in an axial gravitational (g) loading of 50 g's.
4.1.3 Codes and Standards The TN-32 cask confinement boundary is designed and fabricated in accordance with Subsection NB of the ASME Code. Exceptions to the code are listed in Table 4.1-1. The cask gamma shielding has been evaluated in accordance with Subsection NB of the ASME code with the exceptions listed in Table 4.1 -1. The basket is designed in accordance with Subsection NF of the ASME Code. The basket is inspected as shown in Table 4.1-1.
Proposed alternatives to ASME Code Section III, 1992 Edition including exceptions allowed by Table 4.1-1 may be used when authorized by the Director of the Office of Nuclear Material Safety and Safeguards or Designee. The applicant should demonstrate that:
1.The Proposed alternatives would provide an acceptable level of quality and safety, or 2.Compliance with the specified requirements of ASME Code,Section III, 1992 Edition would result in hardship or unusual difficulty without a compensating increase in the level of quality and safety.
Requests for exceptions in accordance with this section should be submitted in accordance with 10 CFR 72.4.
4.1.4 Helium Purity The cask shall be filled with helium with a purity of at least 99.99%. This level of purity will ensure that the residual impurities in the cask cavity will be less than I mole.
TN-32 Technical Specifications 4.0-1 Renewed Amendment 0
Design Features 4.0 4.2 Storage Pad 4.2.1 Storage Locations for Casks Casks shall be spaced a minimum of 16 feet apart, center-to-center. This minimum spacing will ensure the proper dissipation of radiant heat energy from an array of casks as assumed in the TN-32 Safety Analysis Report.
4.2.2 Pad Properties to Limit Cask Gravitational Loadings Due to Postulated Drops The TN-32 cask has been evaluated for cask drops onto a reinforced concrete pad. The evaluations are based on the following parameters:
Concrete thickness 36 inches (max)
Nominal concrete compressive strength 6000 psi (max)
Reinforcement Yield Strength 60,000 psi (min)
Soil Effective Modulus of Elasticity 32,600 psi (max)
Maximum drop height 18 inches This set of limits will ensure that the g loading imposed on the cask is no more than 50 g's (cask bottom end drop).
4.3 Site Specific Parameters and Analyses Site specific parameters and analyses that shall need verification by the system user are, as a minimum, as follows:
- 1. Tornado maximum wind speeds: 290 mph rotational 70 mph translational
- 2. Flood levels up to 57 ft. and drag forces up to 57,160 lbs.
- 3. Seismic loads of up to 0.26g horizontal and 0.17g vertical.
- 4. Average daily ambient temperatures: _ -20OF minimum
<1 O0°F maximum
- 5. The potential for fires and explosions shall be addressed, based on site-specific considerations. Fires and explosions should be bounded by the cask design bases parameters of 200 gallons of fuel (in the tank of the transporter vehicle) and an external pressure of 25 psig.
- 6. Supplemental Shielding: In cases where engineered features (i.e. berms, shield walls) are used to ensure that the requirements of 10 CFR 72.104(a) are met, such features are to be considered important to safety and must be evaluated to determine the applicable Quality Assurance Category.
TN-32 Technical Specifications 4.0-2 Renewed Amendment 0
Table 4.1-1 TN-32 ASME Code Exceptions List of ASME Code Exceptions for TN-_32 Dry Storage Cask Confinement Boundary/Gamma Shielding/Basket The cask confinement boundary is designed in accordancewith the ASME Code Subsection NB. The basket was also designed in accordancewith ASME Code Subsection NF. The Gamma shielding, which is primarily for shielding, but also provides structural support to the confinement boundary during drop accidents, was not designed in accordancewith the ?-de. The analysis of the gamma shielding is in accordancewith Subsection NB. Inspections of the gamma shielding are performedin accordancewith the ASME Code as detailedin the SAR.
Reference Code Exception, Justification & Compensatory Measures Component ASME Requirement CodelSection TN-32 NB-1 100 Stamping and The TN-32 cask is not N stamped, nor is there a code design specification Cask preparation of generated. A design criteria document was generated in accordance with reports by the TN's QA Program, and the design and analysis is provided in the SAR.
Certificate Holder TN-32 Cask NCA-3800 Quality Assurance The Quality assurance requirements of NQA-1 or 10 CFR 72 Subpart G arc Requirements imposed in lieu of NCA-3800 requirements.
.1 Lid Bolts NB-3232.3 Fatigue analysis of A fatigue analysis of the bolts is not performed for storage, since the bolts bolts are not subject to significant cyclical loads.
Gamma NB-1 132.2 Non-pressure The primary function of the gamma shield is shielding, although Shielding retaining structural credit is taken for the gamma shielding in the structural analysis.
'I attachments shall The welds are examined in accordance with NF acceptance criteria. A conform to fracture toughness evaluation is presented in Appendix 3E of the SAR.
Subsection NF Pressure test NB-61 10 All pressure The TN-32 cask is not pressure limited. All confinement welds are fully of the retaining radiographed. In addition, the gamma shielding supports the confinement confinement components shall boundary under all conditions, so a pressure test of the confinement vessel boundary be pressure separately will not simulate actual loading conditions. If the pressure test Is tested. performed with the confinement vessel inside the gamma shield, the confinement boundary welds cannot be examined.
TN-32 Technical Specifications Renewed Amendment 0
Table 4.1-1 TN-32 ASME Code Exceptions Code Exception, Justification & Compensatory Measures Requirement Confinement NB-2120 Requirement Standard Review Plan, NUREG-1536 has accepted the use of either Vessel materials to be Subsection NB (Class 1) or NC (Class 2 or 3) of the Code for the Material ASME Class 1 confinement. SA-203 Gr. D is similar to SA-203 Gr. E which is a Class 1 material material. The chemical content of the two grades are identical, except that Gr. E restricts the carbon to 0.20 max., while Gr. D further restricts the carbon content to 0.17 max. Gr. D is acceptable as a Class 2 material up to 5000 F.
Gr. D was selected because of its ductility, since the higher strength is not required. SA-203 Gr. D has better elongation than Grade E and due to its lower strength is more likely to have the good fracture toughness at low temperatures.
In selecting materials for storage and transport casks, one of the major selection criteria is fracture toughness at low temperatures. Grade D was selected on this basis. There is no similar requirement for pressure vessels, as they are used at much higher temperatures.
For the SA-203 Grade D material, the allowable stress was based on S, the allowable stress for Class 2 components. This is conservative, since NB is based on S,, which is 1/3 the tensile strength, while S is 1/4 the tensile strength. Thus there is additional margin over and above the marain reauired bv the code for Class I materials.
Weld of Lid NB-4335 Impact testing of If two different materials are joined, the fracture toughness requirements Shield Plate to weld and heat of either may be used for the weld metal. There are no fracture toughness Lid affected zone of lid requirements on the shield plate, and therefore none are performed on the to shield plate base metal or the heat affected zones. This weld is not subject to low temperatures, as it is inside the cask cavity. An evaluation of this weld at low temperatures is presented in Appendix 3E of the SAR.
TN-32 Technical Specifications Renewed Amendment 0
Table 4.1-1 TN-32 ASME Code Exceptions Code Exception, Justification & Compensatory Measures Requirement Gamma NB-2190 Material in the The gamma shielding materials were procured to ASTM or ASME material Shielding component specifications. Materials testing is performed in accordance with the support load path applicable specification. Impact testing is not performed on the gamma and not performing shielding materials (including welding materials). An evaluation of the a pressure gamma shielding due to impact at low temperatures is provided in retaining function Appendix 3E of the SAR.
welded to pressure retaining material shall meet the requirements of NF-2000 Confinement NB-7000 Vessels are No overpressure protection is provided. Fursu,.on of confinement vessel is Vessel required to have to contain radioactive contents under normal, off normal, and accident overpressure conditions of storage. Confinement vessel is designed to withstand protection maximum internal pressure considering 100% fuel rod failure and maximum accident temperatures.
Confinement NB-8000 States TN-32 cask to be marked and identified in accordance with 10CFR72 Vessel requirements for requirements. Code stamping is not required. QA data package to be in nameplates, accordance with Transnuclear approved QA program.
stamping and reports per NCA 8000 Confinement NB-2000 Requires materials Material will be supplied by Transnuclear approved suppliers with Certified Vessel to be supplied by Material Test reports (CMTR) in accordance with NB-2000 requirements.
material ASME approved The cask is not code stamped. The quality assurance requirements of material supplier; NQA-1 or 10 CFR 72 Subpart G are imposed in lieu of the requirements of Quality assurance NCA-3800.
to meet NCA requirements TN-32 Technical Specifications Renewed Amendment 0
Table 4.1-1 TN-32 ASME Code Exceptions Code Exception, Justification & Compensatory Measures Requirement Corner weld NB-5231 Full penetration In lieu of the UT inspection, the joint will be examined by RT and either PT between corner welded or MT methods in accordance with ASME Subsection NB requirements.
bottom inner joints require the plate to inner fusion zone and shell the parent metal beneath the attachment surface to be UT after welding Boundary of NB-1 131 The design A code design specification was not prepared for the TN-32 cask. A TN Jurisdiction specification shall design criteria was prepared in accordance with TN's QA program. The define the containment boundary is specified in Chapter 1 of the SAR.
boundary of a component to which another component is attached.
Aluminum NF-2120 Materials to be The aluminum plate strength is not used for structural analysis under basket plate ASME Class 1 normal operating loads nor the 50g accident end drop load. The and rail, material aluminum plate strength is only assumed to be effective for the short neutron duration dynamic loading from a tipover accident and for secondary absorber thermal stress calculations. 6061-T6 is ASME code material (Class 2 or plates 3). The strength of the neutron absorber plates are not considered in any analysis.
TN-32 Technical Specifications Renewed Amendment 0
Table 4.1-1 TN-32 ASME Code Basket NF-4000/NF- Welding/NDE Basket welding procedures are qualified in accordance with ASME 5000 InspectionsSection IX. Due to the unique nature of these welds, special inspections and tests were developed for these welds. These are described in Section 9.1.2 of the SAR Components Subsection NB The code does not apply to components other than the containment other than the boundary and basket. The gamma shielding has been analyzed and containment inspected in accordance with Subsection NB as defined at the beginning boundary and of this table basket Basket NF-3000 Allowable The ASME Code gives stress values up to 4000 F. Stress values above Stresses 400°F are taken from "Aluminum Standards and Data", 1990. The allowable stresses used for the aluminum basket plate and rail are based on S, the allowable stress for a Class 2 or 3 component. This is conservative, since the analyses of the basket and rail are performed in accordance with the rules of Subsection NF. Subsection NF allowables are based on Sm which is 1/3 the ultimate strength, while S is 14 the ultimate strength. Thus there is additional margin built into the analysis of the basket and rail over and above the margin required by Subsection NF for class 1 materials TN-32 Technical Specifications Renewed Amendment 0 I
Administrative Controls 5.0 5.0 ADMINISTRATIVE CONTROLS 5.1 Training Module Training modules shall be developed under the general licensee's training program as required by 10 CFR 72.212(b)(6). Training modules shall require a comprehensive program for the operation and maintenance of the TN-32 spent fuel storage cask and the independent spent fuel storage installation (ISFSI). The training modules shall include the following elements, at a minimum:
"* TN-32 cask design (overview)
"* ISFSI Facility design (overview)
"* Systems, Structures, and Components Important to Safety (overview)
"* TN-32 Dry Storage Cask Safety Analysis Report (overview)
"* NRC Safety Evaluation Report (overview)
"* Certificate of Compliance conditions
"* TN-32 Technical Specifications
"* Applicable Regulatory Requirements (e.g.,10 CFR72, Subpart K, 10 CFR 20, 10 CFR Part 73)
"* Required Instrumentation and Use
", Operating Experience Reviews
"* TN-32 Cask Operating and Maintenance procedures, including:
Fuel qualification and loading Rigging and handling Loading Operations as described in Chapter 8 of the SAR Unloading Operations including reflooding as described in Chapter 8 of the SAR Auxiliary equipment operations and maintenance (i.e. vacuum drying, helium backfilling and leak testing, reflooding)
Transfer operations including loading and unloading of the Transport Vehicle ISFSI Surveillance operations Radiation Protection Maintenance Security Off-normal and accident conditions, responses and corrective actions.
5.2 Programs The following programs shall be established, implemented, and maintained:
TN-32 Technical Specifications 5.0-1 Renewed Amendment 0
Administrative Controls 5.0 5.2.1 Cask Sliding Evaluation The TN-32 cask has been evaluated for sliding in the unlikely events of a seismic event. A static coefficient of friction of 0.35 is used in these analyses. This program provides a means for evaluating the coefficient of friction to ensure that the cask will not slide during the seismic event.
- a. Pursuant to 10 CFR 72.212, this program shall evaluate the site-specific ISFSI pad configurations/conditions to ensure that the cask would not slide during the postulated design basis earthquake. The program shall conclude that the surface static friction coefficient of friction is greater than or equal to 0.35.
- b. Alternatively, for site-specific ISFSI pad configurations/conditions with a lower coefficient of "frictionthan 0.35, the program shall evaluate the site specific conditions to ensure that the TN-32 cask will not slide during the postulated design basis earthquake. The program shall also evaluate storm winds, missile impacts and flood forces to ensure that the cask will not slide such that it could result in impact with other casks or structures at the ISFSI. The program shall ensure that these alternative analyses are documented and controlled.
5.2.2 Cask Transport Evaluation Program This program provides a means for evaluating various transport configurations and transport route conditions to ensure that the design basis drop limits are met.
- a. Pursuant to 10 CFR 72.212, this program shall evaluate the site-specific transport conditions. To demonstrate compliance with Technical Specification 4.2.2, the program shall conclude that the expected lift height above the transport surface shall be less than or equal to that described by Technical Specification 4.2.2. Also, the program shall conclude that the transport route conditions (e.g., surface hardness and pad thickness) are equivalent to or less limiting than those prescribed for the typical pad surface which forms the basis for Technical Specification 4.2.2.
- b. Alternatively, for site-specific transport conditions which are not encompassed by those of Technical Specification 4.2.2, the program shall evaluate the site-specific conditions to ensure that the end-drop loading does not exceed 50 g. This alternative analysis shall be commensurate with the analysis which forms the basis of Technical Specification 4.2.2 (Reference TN-32 SAR Appendix 3A). The program shall ensure that these alternative analyses are documented and controlled.
- c. This program shall establish administrative controls and procedures to ensure that cask TRANSPORT OPERATIONS are conducted within the limits imposed by the Technical Specifications or the alternative analysis described above.
5.2.3 Cask Surface Dose Rate Evaluation Program This program provides a means for ensuring that ISFSI's using TN-32 casks do not violate the requirements of 10 CFR 72 and Part 20 regarding radiation doses and dose rates.
- 1. As part of its evaluation pursuant to 10 CFR 72.212, the licensee shall perform an analysis to confirm that the limits of 10 CFR Part 20 and 10 CFR Part 72.104 will be satisfied under the actual site conditions and configurations considering the planned number of casks to be used and the planned fuel loading conditions.
TN-32 Technical Specifications 5.0-2 Renewed Amendment 0
Administrative Controls 5.0 5.2.3 Continued
- 2. On the basis of the analysis in TS 5.2.3.1, the licensee shall establish a set of cask surface dose rate limits which are to be applied to TN-32.casks used at the site. Limits shall establish average gamma-ray and neutron dose rates for:
A. The top of the TN-32 cask (protective cover)
B. The sides of the radial neutron shield, C. The side of the cask above the radial neutron shield, and D. The side of the cask below the radial neutron shield.
- 3. Not withstanding the limits established in TS 5.2.3.2, the dose rate limits may not exceed the values calculated in the SAR for a content of design basis fuel as follows:
A. 60 mr/hr gamma and 10 mr/hr neutron on the top (protective cover)
B. 170 mr/hr gamma and 20 mr/hr neutron on the sides of the radial neutron shield C. 280 mr/hr gamma and 140 mr/hr neutron on the side surfaces of the cask above the radial neutron shield region.
D. 110 mr/hr gamma and 200 mr/hr neutron on the side surfaces of the cask below the radial neutron shield region.
- 4. Prior to transport of a TN-32 containing spent fuel to the ISFSI, the licensee shall measure the cask surface dose rates and calculate average values as described in 5.2.3.7 and 5.2.3.8.
The measured average dose rates shall be compared to the limits established in TS 5.2.3.2 or the limits in TS 5.2.3.3, whichever are lower.
- 5. Ifthe measured average surface dose rates do not meet the limits of TS 5.2.3.2 or TS 5.2.3.3, whichever are lower, the licensee shall take the following actions:
A. Notify the U.S. Nuclear Regulatory Commission (Director of the Office of Nuclear Material Safety and Safeguards) within 30 days.
B. Administratively verify that the correct fuel was loaded, and C. Perform an analysis to determine that placement of the as-loaded cask at the ISFSI will not cause the ISFSI to exceed the radiation exposure limits of 10 CFR Parts 20 and 72.
- 6. Ifthe analysis in 5.2.3.5.C shows that placement of the as-loaded cask at the ISFSI will cause the ISFSI to exceed the radiation exposure limits of 10 CFR Parts 20 and 72, the licensee shall remove all fuel assemblies from the cask within 30 days of the time of cask loading.
- 7. The surface dose rates shall be measured at approximately the following points (see also
- Figure 5.2.3-1).
A. Above the Radial Neutron Shield (A): Midway between the top of the cask body flange and the top of the radial neutron shield. At least six measurements equally spaced circumferentially.
TN-32 Technical Specifications 5.0-3 Renewed Amendment 0
Administrative Controls 5.0 5.2.3 Continued B. Sides of Radial Neutron Shield (B, C and D): one sixth, one half and five sixths of the distance from the top of the radial neutron shield. At least six measurements equally spaced circumferentially at each elevation, two of which shall be at the circumferential location of the cask trunnions. However, no measurement shall be taken directly over the trunnion.
C. Below Radial Neutron Shield (E): Midway between the bottom of the radial neutron shield and the bottom of the cask. At least six measurements equally spaced circumferentially.
D. Top of Cask (F, G and H): At the center of the protective cover, one measurement (F). Half way between the center and the knuckle at least four measurements equally spaced circumferentially (G). At the knuckle at least four measurements equally spaced circumferentially (H).
- 8. The average dose rates shall be determined as follows.
In each of the four measurement zones in TS 5.2.3.7, the sum of the dose rate measurements is divided by the number of measurements to determine the average for that zone. The neutron and gamma-ray dose rates are averaged separately. Uniformly spaced dose rate measurement locations are chosen such that each point in a given zone represents approximately the same surface area.
5.2.4 Aging Management Program Each general licensee shall have a program to establish, implement, and maintain written procedures for each aging management program (AMP) described in the updated final safety analysis report (UFSAR). The program shall include provisions for changing AMP elements, as necessary, and within the limitations of the approved licensing bases to address new information on aging effects based on inspection findings and/or industry operating experience provided to the general licensee during the renewal period. The program document shall contain a reference to the specific aspect of the AMP element implemented by that program document, and that reference shall be maintained even if the program document is modified.
The general licensee shall establish and implement this program document prior to entering the period of extended operation or no later than one year after the effective date of the CoC renewal, whichever is later. The general licensee shall maintain the program document for as long as the general licensee continues to operate a TN-32 dry storage cask system in service for longer than 20 years.
TN-32 Technical Specifications 5.0-4 Renewed Amendment 0
Administrative Controls 5.0 s.
HS B3 CO]
D
- NOTE: DOSE MEASUREMENTS ARE AT CONTACT FIGURE 5.2.3-1 CONTACT DOSE RATE MEASUREMENTS LOCATIONS TN-32 Technical Specifications 5.0-5 Renewed Amendment 0
Administrative Controls 5.0 I THIS PAGE INTENTIALLY BLANK TN-32 Technical Specifications Renewed Amendment 0