DOCUMENT RELEASE AND CHANGE FORM Prepared For the U.S. Department of Energy, Assistant Secretary for Environmental Management By Washington River Protection Solutions, LLC., PO Box 850, Richland, WA 99352 Contractor For U.S. Department of Energy, Office of River Protection, under Contract DE-AC27-08RV14800

1a. Doc No: RPP-11802 Rev. 03B

1b. Project Number: ☒ N/A

1 SPF-001 (Rev.0)

TRADEMARK DISCLAIMER: Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States government or any agency thereof or its contractors or subcontractors. Printed in the United States of America.

Release Stamp

2. Document Title

ANALYSIS OF RECORD SUMMARY FOR SINGLE-SHELL TANKS

3. Design Verification Required

☐ Yes ☐ No

4. USQ Number ☐ N/A 5. PrHA Number ☒ N/A

N/A-9 Rev.

6. USQ Screening:

a. Does the change introduce any new failure modes to the equipment? ☐ Yes ☒ No

Basis is required for Yes:

b. Does the change increase the probability of existing failure modes? ☐ Yes ☒ No

Basis is required for Yes:

c. For Safety Significant equipment, does the change require a modification to Chapter 4 of the DSA and/or FRED? ☐ Yes ☐ No ☒ N/A

Basis is required for Yes:

7. Description of Change and Justification (Use Continuation pages as needed)

RPP-11802, Rev. 3B, will revise both Section 3.0, Results and Conclusions, and Table 6. It also will add sections 10.1.2 and 10.2.2 as well as related references in section 11. Section 3.0 paragraph 8 will be revised to include tank 241-C-111 as a tank with an increased dome load as documented in RPP-RPT-53494. Table 6 will revise the tank 241-C-111 soil depth and allowable concentrated load (ACL) value. The new soil depth will be 6.00 feet and the new ACL value will be of 650 kips. This ACL value can then be used for updating the dome load log (DLL) form for tank 241-C-111. Sections 10.1.2 and 10.2.2 describe the recent Analyses of Record. (RPP-RPT-49989 through RPP-RPT-49994)

8. Approvals

Title Name Signature Date

Clearance Review AARDAL, JANIS D AARDAL, JANIS D 07/13/2015

Checker BINGHAM, JAMES D BINGHAM, JAMES D 07/06/2015

Document Control Approval HONEYCUTT, COLLEEN HONEYCUTT, COLLEEN 07/13/2015

Originator MCSHANE, MICHAEL MCSHANE, MICHAEL 07/08/2015

Other Approver GAUCK, GREGORY J GAUCK, GREGORY J 07/08/2015

Responsible Engineer MACKEY, TOM MCSHANE, MICHAEL for MACKEY,

TOM per email

07/08/2015

Responsible Engineering Manager MENDOZA, RUBEN E MENDOZA, RUBEN E 07/09/2015

USQ Evaluator HIGUERA, MAURICE HIGUERA, MAURICE 07/09/2015

9. Clearance Review:

Restriction Type:

☒ Public

☐ Undefined

☐ Unclassified Controlled Nuclear Information (UCNI)

☐ Export Control Information (ECI)

☐ Official Use Only Exemption 2-Circumvention of Statute (OUO-2)

☐ Official Use Only Exemption 3-Statutory Exemption (OUO-3)

☐ Official Use Only Exemption 4-Commercial/Proprietary (OUO-4)

☐ Official Use Only Exemption 5-Privileged Information (OUO-5)

☐ Official Use Only Exemption 6-Personal Privacy (OUO-6)

☐ Official Use Only Exemption 7-Law Enforcement (OUO-7)

RPP-11802 7/13/2015 - 8:34 AM 1 of 33

Jul 13, 2015DATE:

CGH, 7/13/15

DOCUMENT RELEASE AND CHANGE FORM Doc No: RPP-11802 Rev. 03B

2 SPF-001 (Rev.0)

10. Distribution:

Name Organization

BOETTGER, JEFF SLUICE-BASED RETRIEVAL ENGRNG

CALL, LYNN ENGRNG PROGRAMS & STANDARDS

ERHART, MICHAEL F MARS-BASED RETRIEVAL ENGRNG

FORSMAN, NANCY L AN TEAM AREA DAY SHIFT

GAUCK, GREGORY J WASTE STORAGE/TRANSFER ENG

HOPKINS, GARY P R&C CONSTRUCTION

MACKEY, TOM ENGRNG PROGRAMS & STANDARDS

MCSHANE, MICHAEL DESIGN SERVICES

MENDOZA, RUBEN E WASTE STORAGE/TRANSFER ENG

MISIAK, THOMAS A ENGRNG PROGRAMS & STANDARDS

NARANJO, DANIEL A

PARKMAN, DAVID B MARS-BASED RETRIEVAL ENGRNG

SACKETT, TOM E ELECTRICAL/AREA/242A-EVAP ENG

SAUERESSIG, DAVID J C FARM RETRIEVAL & CLOSURE

SCOTT, MARK A ENGRNG PROGRAMS & STANDARDS

SUTEY, MIKE SST R&C PROJECT ENGINEERING

SYNOGROUND, TODD C SHIFT OPERATIONS

TUCKER, RON AN/B/BX/BY/C FARM TEAM

11. TBDs or Holds ☐ N/A

12. Impacted Documents – Engineering ☒ N/A

Document Number Rev. Title

13. Other Related Documents ☐ N/A

Document Number Rev. Title

RPP-RPT-49989 00 SINGLE-SHELL TANK INTEGRITY PROJECT ANALYSIS OF RECORD HANFORD TYPE II SINGLE-SHELL TANK THERMAL AND OPERATING LOADS AND SEISMIC ANALYSIS

RPP-RPT-49990 00 SINGLE-SHELL TANK INTEGRITY PROJECT ANALYSIS OF RECORD HANFORD TYPE III SINGLE-SHELL TANK THERMAL AND OPERATING LOADS AND SEISMIC ANALYSIS

RPP-RPT-49991 00 Single-Shell Tank Integrity Project Analysis of Record Tank to Tank Interaction Study of the Hanford Single-Shell Tanks

RPP-RPT-49992 00 Single-Shell Tank Integrity Project Analysis of Record Hanford Type IV Single-Shell Tank Thermal and Operating Loads and Seismic Analysis

RPP-RPT-49993 00 Single-Shell Tank Integrity Project Analysis of Record Hanford Type I Single-Shell Tank Thermal and Operating Loads and Seismic Analysis

RPP-RPT-49994 00 Summary Report for the Hanford Single Shell Tank Structural Analyses of Record Single-Shell Tank Integrity Project Analysis of Record

RPP-RPT-53494 00 An Evaluation of the 241-C-105 Maximum Dome Loads for Application to the Other C-Farm 100 Series Tanks

14. Related Systems, Structures, and Components:

14a. Related Building/Facilities ☐ N/A

200C

200E

241-C

241-C-111

241G

14b. Related Systems ☒ N/A

14c. Related Equipment ID Nos. (EIN) ☒ N/A

RPP-11802 7/13/2015 - 8:34 AM 2 of 33

Per M. McShane, CGH, 7/13/15

3 SPF-001 (Rev.0)

DOCUMENT RELEASE AND CHANGE FORM CONTINUATION SHEET

Document No: RPP-11802 Rev. 03B

RPP-11802 7/13/2015 - 8:34 AM 3 of 33

A-6002-767 (REV 3)

RPP-11802, Rev. 3B

Analysis of Record Summary for Single-Shell Tanks

MP McShane

Washington River Protection Solutions

Richland, WA 99352 U.S. Department of Energy Contract DE-AC27-08RV14800

EDT/ECN: N/A UC: N/A

Cost Center: N/A Charge Code: N/A

B&R Code: N/A Total Pages:

Key Words: Analysis of Record Summary, Single-Shell Tanks

Abstract: This document provides a summary of the Analysis of Record (AOR) requirements for single-

shell tanks that dictate the current dome load limits.

TRADEMARK DISCLAIMER. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof or its contractors or subcontractors.

Release Approval Date Release Stamp

Approved For Public Release

RPP-11802 7/13/2015 - 8:34 AM 4 of 33

By Janis D. Aardal at 9:04 am, Jul 13, 2015

33 CGH, 7/13/15

Jul 13, 2015DATE:

A-6003-835 (REV 4)

Tank Operations Contractor (TOC)

RECORD OF REVISION

Document Number: RPP-11802

Title:

Analysis of Record Summary for Single-Shell Tanks

Change Control Record

Date Revision Description of Change – Replace, Add, and Delete Pages Changed By

1 Direct revision pages per ECN-721536, Rev 0 TC Mackey

1A Direct revision pages per ECN-721702, Rev 0 TC Mackey

1B Direct revision pages per ECN-724909, Rev 0 TC Mackey

1C Direct revision pages per ECN-11-000910, Rev 0 TC Mackey

2 Direct revision pages per ECN-11-002150, Rev 0 EM Tress

3 Direct revision pages per ECN-12-001063, Rev 0 EM Tress

3A Direct revision pages per ECN-13-000286, Rev 0 EM Tress

6/2015 3B Revision of section 3 paragraph 8 and Table 6 as shown on DRCF MP McShane

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RPP-11802, Rev. 3B

i

ANALYSIS OF RECORD

SUMMARY FOR

SINGLE-SHELL TANKS

TC Mackey

Washington River Protection Solutions, LLC

Date Published

June 2015

Prepared for the U.S. Department of Energy

Office of River Protection

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RPP-11802, Rev. 3B

ii

CONTENTS 1.0 OBJECTIVE AND PURPOSE ............................................................................................. 1

2.0 TERMS AND DEFINITIONS .............................................................................................. 1

5.0 SOIL DEPTH ......................................................................................................................... 4

6.0 SOIL DENSITY ..................................................................................................................... 4

7.0 ALLOWABLE CONCENTRATED LOAD ........................................................................ 4

8.0 UNIFORMLY DISTRIBUTED LOAD ............................................................................... 5

9.0 EXCLUSION ZONE ............................................................................................................. 5

10.0 SST ANALYSES OF RECORD HISTORY ....................................................................... 5

11.0 REFERENCES ...................................................................................................................... 8

ATTACHMENT A- LOAD TRACKING ................................................................................. 24

LIST OF TABLES

Table 1 - A Tank Farm Soil and Allowable Concentrated Load Data. ........................................ 12

Table 2 - AX Tank Farm Soil and Allowable Concentrated Load Data. ..................................... 12

Table 3 - 100-Series B Tank Farm Soil and Allowable Concentrated Load Data. ...................... 13

Table 4 - BX Tank Farm Soil and Allowable Concentrated Load Data. ..................................... 14

Table 5 - BY Tank Farm Soil and Allowable Concentrated Load Data. ..................................... 14

Table 6 - 100-Series C Tank Farm Soil and Allowable Concentrated Load Data. ...................... 16

Table 7 - S Tank Farm Soil and Allowable Concentrated Load Data. ........................................ 17

Table 8 - SX Tank Farm Soil and Allowable Concentrated Load Data. ..................................... 18

Table 9 - 100-Series T Tank Farm Soil and Allowable Concentrated Load Data. ...................... 19

Table 10 - TX Tank Farm Soil and Allowable Concentrated Load Data. ................................... 20

Table 11 - TY Tank Farm Soil and Allowable Concentrated Load Data. ................................... 21

Table 12 - 100-Series U Tank Farm Soil and Allowable Concentrated Load Data. ................... 21

Table 13 - 200-Series B Tank Farm Soil and Allowable Concentrated Load Data ..................... 22

Table 14 - 200-Series C Tank Farm Soil and Allowable Concentrated Load Data. .................... 22

Table 15 - 200-Series T Tank Farm Soil and Allowable Concentrated Load Data. .................... 23

Table 16 - 200-Series U Tank Farm Soil and Allowable Concentrated Load Data. ................... 23

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RPP-11802, Rev. 3B

1

1.0 OBJECTIVE AND PURPOSE

This document RPP-11802 is being updated to incorporate the information contained in the

recent performed analyses, Tank-Specific Allowable Load for Hanford Site Single-Shell Tanks,

RPP-16363 (Ref. 15) and 200-Series Single-Shell Tank Dome Load Capacity (200 B, C, T and

U), RPP-16660 (Ref. 17). In April 2004, RPP-20473 was issued to provide design and dome

load tracking requirements. The purpose of this update is to consolidate the information

contained in numerous documents and provide this information to be readily available for

accessing allowable concentrated load limits above the tanks. Historical information for tanks

can be found in the previous revisions to this document including Analysis of Record (AOR) for

each tank.

This document summarizes the results of the AOR analyses and describes the basis for the

current dome load limits. This document provides the code-based load limits for which the tanks

were qualified through the AOR structural analyses. The dome load limits are allowable load

limits and thus include a code-based factor of safety in addition to any inherent safety factor for

the analyzed design loads considered.

2.0 TERMS AND DEFINITIONS

Analysis of Record (AOR) – A structural engineering analysis for a tank/facility that defines or

revises the safe operating load limits.

Authorized Temporary Concentrated Load - The sum of concentrated loads allowed on the tank

that are not permanent.

Concentrated Load - A load that is applied to a small area relative to the diameter of the tank and

is located anywhere above the tank and/or within the exclusion zone for the tank.

Concentrated Load Limit – The maximum allowed total concentrated load included in the AOR

qualifying structural analysis for the tank.

Distributed Load - A load or group of loads that are uniformly distributed over the tank.

Distributed Load Limit - The sum of uniform and distributed loads that was included in the AOR

qualifying structural analysis for the tank.

Dead Load – The vertical load due to the weight of all permanent structural and nonstructural

components of a structure.

Exclusion Zone - An area established around each tank that defines the jurisdiction limit for

administratively controlled dome loading.

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RPP-11802, Rev. 3B

2

Interim Concentrated Load Limit – Historically, the maximum allowed dome load for additional

concentrated loads (temporary and permanent) applied over the tank and/or within the exclusion

zone, until a DLR has been completed for the tank of interest.

Live Load – Load superimposed by moveable operational objects on the structure (does not

include wind load, earthquake load, or dead load).

Load Summary - Summary of loads documented in DLR.

Natural Load - A uniform load reserved for natural phenomenon loads, which includes snow and

volcanic ash fall environmental loads (see Ref. 19).

Permanent Concentrated Load - Sum of all concentrated loads that will remain permanently on

the tank.

Soil Density – The unit weight of soil in the units of lbf/ft3.

Soil Depth - The depth of soil measured from the apex of the tank dome or the highest point on

the tank structure up to the average soil grade over the tank.

Soil Depth Limit – The maximum allowable soil depth based on the AOR.

Soil Load - The weight of the soil directly over the tank, i.e., within the vertical projection of the

tank perimeter.

Tank Pressure Load - A uniform load reserved for the maximum obtainable equivalent dome

load caused by differential pressure between the tank vapor space and atmosphere.

Total Concentrated Load - The sum of all concentrated loads on the tank; the permanent

concentrated load plus the authorized temporary concentrated load.

Total Distributed Load - The sum of all distributed loads on the tank, which includes soil load,

equivalent uniform load, natural load, and tank pressure load.

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RPP-11802, Rev. 3B

3

3.0 RESULTS AND CONCLUSIONS

RPP-16363 (Ref. 15) document determined the magnitude of the revised concentrated load for

the tank specific in-place soil density and overburden that results in demands on the tank

structure that are within the baseline demand envelope established for the existing AOR loading

conditions. Based on the RPP-16363 results, the revised load limits presented in Tables 1

through 12 should be used for the specific 100-series SST tank.

RPP-16660 (Ref. 17) document determined the magnitude of the revised concentrated load for

the worst case soil density and overburden that results in demands on the tank structure that are

within the baseline demand envelope established for the existing AOR loading conditions. Based

on the RPP-16660 results, the revised load limits presented in Tables 13 through 16 should be

used for the specific 200-series SST tank. For AOR calculations use TFC-ENG-DESIGN-C-10

(Ref. 3) and for design use TFC-ENG-STD-06 (Ref. 19). Tank design criteria recommendations

can be found in RPP-20473.

Dome load tracking requirements are summarized in Attachment A which is based on RPP-

20473. For additional guidance on dome load sensitivity and dome load tracking see RPP-20473.

The documents RPP-CALC-43416 & RPP-CALC-47657 evaluate the addition of a large

penetration in 241-C-107 using a comparative analysis. These evaluations conclude the addition

of the large penetration does not affect the current dome load limits.

The document, RPP-CALC-51195, evaluates the addition of a large penetration in 241-C-105

using finite element modeling techniques, including static, seismic and TOLA conditions, based

on the current dome load limits (per RPP-11802, Rev 1C). The evaluation concludes the

installation of the 55-in. large penetration does not compromise the structural integrity of the

Tank C-105 dome.

The document, RPP-CALC-51994, evaluates the maximum dome load analysis of 241-C-105

after the addition of a 55-in. penetration in the dome center using finite element modeling

techniques, including static, seismic and TOLA conditions. The evaluation concludes the

maximum allowable concentrated live load above the dome is 650-kip (uniformly distributed

over a 20-ft diameter area) with a baseline configuration of Tank C-105 of a 55-in penetration in

the soil and the dome, covered with 6 ft of soil (125 lbf/ft3) at the apex.

The document, RPP-CALC-51995, evaluates soil excavation and offset loading activities

supporting the installation of a 55-in. penetration in 241-C-105. The evaluation provides the

technical basis for the removal of soil and placement of equipment on the dome.

The document, RPP-RPT-53494, evaluates the maximum dome load for the twelve C-Farm

series 100 tanks. The report concludes the 650-kip maximum allowable concentrated load above

the dome is acceptable for all C-Farm series 100 tanks in order to support tank retrieval. At this

time, the allowable concentrated load is increased to the maximum 650-kips for tanks 241-C-

101, 241-C-102, 241-C-107 and 241-C-111 to support ongoing retrieval operations.

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RPP-11802, Rev. 3B

4

4.0 DOME LOAD RECOMMENDATIONS

The SST evaluation performed in RPP-16363 (Ref. 15) provides multiple "Recommendations".

These recommendations are generalizations and are repeated, in part, as follows:

"It is recommended that additional soil density/depth data be obtained, at least for the tanks

where the actual concentrated loading is approaching the allowable values."

"If the allowable concentrated loading is found to be overly restrictive for a specific tank, it is

recommended that an ACI Code evaluation of the specific tank be considered, which would

likely result in higher allowable concentrated loads."

"Past analyses have raised some questions relative to the adequacy of the tank footings for the

baseline loading."

To address the above, if the actual concentrated load approaches the allowable values, the tank

soil density/depth data will be evaluated. If the concentrated load is overly restrictive then

additional ACI Code evaluations will be performed if it is determined to be necessary. The

footings of these and the DST tanks have historically been in question. The analysis performed in

RPP-16363 Appendix F (Ref. 15), a nonlinear finite element analysis, determined that once the

SST footing settled and cracked then load distribution would occur, thus relieving the high stress

zone. “At the shifted critical section, the moment capacity is much higher and the moment is

within the ACI Code limit…" Therefore the SST footing questions are answered in Appendix F.

5.0 SOIL DEPTH

Soil depth is the distance from the apex of the tank dome to the average soil grade over the tank.

Soil depth for each tank is the actual measured depth with documented detailed survey or as

documented by field walkdown per (Ref. 4). See Tables 1 through 16 for soil depth for each

tank.

6.0 SOIL DENSITY

Soil density shown in Tables 1 through 16 is the actual field tested density as documented in

Reference 5.

7.0 ALLOWABLE CONCENTRATED LOAD

The maximum Allowable Concentrated Load limit is determined based on the actual soil depth

and determined soil density as shown in Tables 1 through 16. The Allowable Concentrated Load

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RPP-11802, Rev. 3B

5

is considered to be applied at grade over a 10-ft radius area. The allowable concentrated load

limit for each tank is in addition to the uniformly distributed load and existing soil depth over the

tank dome.

8.0 UNIFORMLY DISTRIBUTED LOAD

A maximum of 40 lbf/ft2 natural or live uniformly distributed load at grade plus a uniformly

distributed due to internal pressure load of (-) 6” of water were considered for analysis of tanks.

These uniformly distributed loads are per references embedded in the documents in the History

of the Analysis of Record section for each tank farm. The latest AOR for the 200 series tank is

RPP-16660.

9.0 EXCLUSION ZONE

The Concentrated Load Limit also applies to the 20 ft Exclusion Zone used for the 100-series

SSTs and 16 ft for the 200-series SSTs (Ref. 8, 9, 10, and 16).

Concentrated (live or transient) loads applied due to the heaviest crane (110-Ton Grove AT1100,

approximate weight of 150,000 lbs) or lighter cranes and equipment, operating at Hanford Site

tank farms within the DST exclusion zones, is acceptable. This load has negligible effects as

determined in Reference 16. This also applies to 200-Series SSTs.

10.0 SST ANALYSES OF RECORD HISTORY

10.1 100-SERIES SST TANKS

10.1.1 History of the Analysis of Record

The AOR for the 100-Series SSTs is SD-RE-TI-012, Rev A-0 (Ref. 6) and RPP-11423 (Ref. 7).

Dome Load Controls were found in Ref. 1.

An axisymmetric finite element model using the ANSYS®1, SAFECRACK and NONSAP-C

programs along with hand calculations were used to perform the analysis. Asymmetric load

cases were also used to evaluate the tanks. The load cases included soil, equipment, hydrostatic

and thermal loads.

The Tanks were evaluated for a 0.25g seismic load utilizing the AXIDYN and FLUSH. computer

programs.

1 ANSYS is a registered trademark of ANSYS, Inc

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RPP-11802, Rev. 3B

6

A 600ºF thermal load on the tanks were considered.

The controlling tank component is listed as being the foundation slab. (The hand calculations

did use the dead load factor, but did not include concentrated load contribution or thermal

contributions.)

10.1.2 Recent Analyses of Record

The most recent AORs performed for the 100 series SSTs are RPP-RPT-49989 (Ref. 28), RPP-

RPT-49990 (Ref. 29), and RPP-RPT-49992 (Ref. 30).

The analyses documented in these reports used modern finite element modeling techniques with

ANSYS®, versions 12.0 and 13.0.

The TOLA static models include the Type II, Type III, and Type IV tank geometries and the

steel reinforcement detailed in the tank drawings. The static analysis evaluated the effects of

waste level, waste temperature, and soil overburden loads. The effects of temperature on material

properties, concrete cracking, and soil properties were also considered. The effects of time

(creep) on the concrete were also considered.

A tank limit load analysis was also conducted with the TOLA static model. A separate TOLA

model evaluated the effects of tank appurtenances unique to the tanks. Tank buckling was

evaluated using theoretical buckling solutions with appropriate knockdown factors for geometric

imperfections, creep, cracking of reinforced concrete, and inelastic concrete deformation.

The dynamic seismic model evaluated a range of soil properties, and evaluated tanks with and

without waste during a seismic event using degraded concrete properties as determined in

TOLA. A separate seismic model was used to evaluate the effects of tank appurtenances.

Tank to tank interaction effects were also considered in RPP-RPT-49991 (Ref. 31) and

demonstrated not to be a problem for tank structural integrity.

The structural evaluations completed with the TOLA and seismic tank models do not reveal any

deficiencies with the structural integrity of the 100 series tanks. In addition, rebar yielding was

not observed in any of the analysis runs performed.

10.2 200-SERIES SST TANKS

10.2.1 History of the Analysis of Record

The AOR for the 200 series SSTs is SD-RE-TI-012, Rev A-0 (Ref 6).

Dome Load Controls were found in Ref. 1.

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An axisymmetric finite element model using the ANSYS®1, SAFECRACK and NONSAP-C

programs along with hand calculations were used to perform the analysis. Asymmetric load

cases were also used to evaluate the tanks. The load cases included soil, equipment, hydrostatic

and thermal loads.

The Tanks were evaluated for a 0.25g seismic load utilizing the AXIDYN and FLUSH computer

programs.

Thermal loads were not considered on the 200 series tanks, as they have never been exposed

waste higher than ambient temperatures.

The controlling tank component is listed as being the foundation slab.

10.2.2 Recent Analysis of Record

The most recent AOR for the 200 series SSTs is RPP-RPT-49993 (Ref. 27).

The analyses documented in these reports used modern finite element modeling techniques with

ANSYS®, version 13.0.

The TOLA static model includes the Type I tank geometry and the steel reinforcement detailed

in the tank drawings. The static analysis evaluated the effects of waste level, waste temperature,

and soil overburden loads.

The effects of temperature on material properties, concrete cracking, and soil properties were

also considered. The effects of time (creep) on the concrete were not considered. A tank limit

load analysis was also conducted with the TOLA static model. Additionally, tank buckling was

also evaluated using theoretical buckling solutions with appropriate knockdown factors for

geometric imperfections, creep, cracking of reinforced concrete, and inelastic concrete

deformation.

The dynamic seismic model evaluated a range of soil properties, and evaluated tanks with and

without waste during a seismic event using degraded concrete properties as determined in

TOLA.

The structural evaluations completed with the TOLA and seismic tank models do not reveal any

significant deficiencies with the structural integrity of the Type I SSTs.

Tank to tank interaction effects for the Type I tanks were considered but not evaluated because

the 50-ft center-to-center spacing gives 3 radii of soil between adjacent tanks.

10.3 Additional Supporting Documents

1 ANSYS is a registered trademark of ANSYS, Inc

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8

Additional supporting analyses include WHC-SD-WM-ER-373, Rev. 0 (Ref. 8), WHC-SD-WM-

ER-373, Rev. 0A (Ref. 9), WHC-SD-WM-ER-201, Rev. 0 (Ref. 10), and RPP-11356 (Ref. 14).

For historical dome load control documents see Ref. 11 and 12.

For other historical documents see Ref. 2, 4, and 5.

The recent analyses of record described in Sections 10.1.2 and 10.2.2 are summarized in RPP-

RPT-49994 (Ref. 32).

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9

11.0 REFERENCES

1. HNF-IP-1266, Section 5.16.B, “Dome Loading Controls,” Tank Farm Operations

Administrative Control Procedure, as amended, CH2M Hill Hanford Group, Inc.,

Richland, Washington.

2. HNF-IP-0842, Volume IV, Section 3.14, "Engineering Design and Evaluation,” RPP

Administration: Engineering Technical Baseline, as amended, CH2M Hill Hanford

Group, Inc., Richland, Washington.

3. TFC-ENG-DESIGN-C-10, Engineering Calculations, as amended, CH2M Hill Hanford

Group, Inc., Richland, Washington.

4. WHC-SD-WM-TI-665, Soil Load above Hanford Waste Storage Tanks, as amended,

Westinghouse Hanford Company, Richland, Washington.

5. WHC-SD-WM-SOIL-001, Soil Weight at Hanford Waste Storage Tank Locations, as

amended, Westinghouse Hanford Company, Richland, Washington.

6. SD-RE-TI-012, Rev A-0, Single-Shell Waste Tank Load Sensitivity Study, Rockwell

Hanford Operations, Richland, Washington, Ramble 1983.

7. RPP-11423, 100-Series Single-Shell Tank Dome Load Assessment for Effort of Potential

Increase in In-Situ Soil Density versus Analysis-of-Record Assumption and

Assessment of Tanks with In-Situ Soil Cover Height in Excess of Analysis-of-Record

Recommended Generic Limit (internal letter 74731-98-LJJ-001 to R.E.Raymond,

January 12, 1998), Lockheed Martin, Richland, Washington.

8. WHC-SD-WM-ER-373, (1992), Rev 0, Dome Load Control and Crane Load Path

Evaluations for 241SY101 During Hydrogen Mitigation Pump Removal and

installation, Westinghouse Hanford Company, Richland Washington.

9. WHC-SD-WM-ER-373, (1994), Rev 0A, Dome Load Control and Crane Load Path

Evaluations for 241SY101 During Hydrogen Mitigation Pump Removal and

installation, Westinghouse Hanford Company, Richland Washington.

10. WHC-SD-WM-ER-201, (1993), Rev 0, Dome Load / HMT (Hydrogen Mitigation Test) /

Link-belt Tank / 241-SY-101, Westinghouse Hanford Company, Richland

Washington.

11. WHC-SD-WM-TA-141, (1992), Rev 0, Tank 241-SY-101 Dome Load Control Document,

Westinghouse Hanford Company, Richland Washington.

12. WHC-SD-WM-TA-141, (1994), Rev 0A, Tank 241-SY-101 Dome Load Control

Document, Westinghouse Hanford Company, Richland Washington.

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RPP-11802, Rev. 3B

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13. RPP-14249, 2003, Dome Load Evaluation, Hanford 241-C-Farm 100-Series Tanks. Rev.

0, B.V. Winkel, M&D Professional Services, Inc., for CH2M Hill Hanford Group,

Inc., Richland, Washington.

14. RPP-11356, 2002, Generic Dome Load Evaluation for Lightning Ground Rod Installation

Within SST Farms (Internal Letter 74731-97-LJJ-091 to DW Crass and JL Homan,

December 11, 1997), Lockheed Martin, Richland, Washington.

15. RPP-16363, 2003, Tank-Specific Allowable Dome Load for Hanford-Site 100-Series

Single-Shell Tanks, Rev. 0, L.J. Julyk et al., CH2M Hill Hanford Group, Inc.,

Richland, Washington.

16. RPP-16746, 2003, Evaluation of Load in Single-Shell and Double-Shell Tank Exclusion

Zones, Rev. 0, L.J. Julyk et al., CH2M Hill Hanford Group, Inc., Richland,

Washington.

17. RPP-16660, 2004, 200-Series Single-Shell Tank Dome Load Capacity (200 B, C, T and

U), Rev. 2, L.J. Julyk et al., CH2M Hill Hanford Group, Inc., Richland, Washington.

18. TFC-ENG-FACSUP-C-10, Control of Dome Loading, as amended, CH2M Hill Hanford

Group, Inc., Richland, Washington.

19. TFC-ENG-STD-06, Design Loads for Tank Farm Facilities, as amended, CH2M Hill

Hanford Group, Inc., Richland, Washington.

20. RPP-20473, 2004, Design and Dome Load Criteria for Hanford Waste Storage Tanks,

Rev. 0, CH2M Hill Hanford Group, Inc., Richland, Washington.

21. RPP-CALC-43416, 2009, An Evaluation of Single-Shell Tank 241-C-107 for the Addition

of a Large Penetration in the Tank Dome. US Department of Energy, Richland, WA.

22. RPP-CALC-47657, 2010, Single-Shell Tanks Large Penetration Addition: Tank 241-C-

107 Dome and Haunch Comparative Analysis. US Department of Energy, Richland,

WA.

23. RPP-CALC-51195, 2011, An Evaluation of Single-Shell Tank 241-C-105 for the Addition

of a Large Penetration in the Tank Dome. US Department of Energy, Richland, WA.

24. RPP-CALC-51994, 2012, A Maximum Dome Load Evaluation for Single-Shell Tank 241-

C-105. US Department of Energy, Richland, WA.

25. RPP-CALC-51995, 2012, A Soil Excavation and Loading Evaluation for Single-Shell

Tank 241-C-105. US Department of Energy, Richland, WA.

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26. RPP-RPT-53494, 2012, An Evaluation of the 241-C-105 Maximum Dome Loads for

Application to the Other C-Farm 100 Series Tanks. US Department of Energy,

Richland, WA.

27. RPP-RPT-49993 Rev 0, 2014, Hanford Type I Single-Shell Tank Thermal and Operating

Loads and Seismic Analysis. US Department of Energy, Richland, WA.

28. RPP-RPT-49989 Rev 0, 2011, Hanford Type II Single-Shell Tank Thermal and Operating

Loads and Seismic Analysis. US Department of Energy, Richland, WA.

29. RPP-RPT-49990 Rev 0, 2011, Hanford Type III Single-Shell Tank Thermal and Operating

Loads and Seismic Analysis. US Department of Energy, Richland, WA.

30. RPP-RPT-49992 Rev 0, 2014, Hanford Type IV Single-Shell Tank Thermal and Operating

Loads and Seismic Analysis. US Department of Energy, Richland, WA.

31. RPP-RPT-49991 Rev 0, 2014, Tank to Tank Interaction Study of the Hanford Single-Shell

Tanks. US Department of Energy, Richland, WA.

32. RPP-RPT-49994 Rev 0, 2015, Summary Report for the Hanford Single-Shell Tank

Structural Analyses of Record. US Department of Energy, Richland, WA.

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Table 1 - A Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 15)1,2

(kips)

241-A-101 7.00 121.7 301

241-A-102 7.00 121.7 301

241-A-103 7.00 121.7 301

241-A-104 7.51 121.7 270

241-A-105 7.51 121.7 270

241-A-106 7.00 121.7 301

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

Table 2 - AX Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 15)1,2

(kips)

241-AX-101 7.23 125 612

241-AX-102 7.47 125 612

241-AX-103 7.47 125 612

241-AX-104 7.47 125 612

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

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Table 3 - 100-Series B Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 15)1,2

(kips)

241-B-101 6.30 125 365

241-B-102 5.80 125 395

241-B-103 6.10 125 377

241-B-104 7.10 125 316

241-B-105 6.30 125 365

241-B-106 6.30 125 365

241-B-107 6.30 125 365

241-B-108 6.30 125 365

241-B-109 7.30 125 304

241-B-110 6.60 125 346

241-B-111 6.80 125 334

241-B-112 6.80 125 334

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

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Table 4 - BX Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 15)1,2

(kips)

241-BX-101 8.30 125 239

241-BX-102 8.50 125 224

241-BX-103 8.65 125 213

241-BX-104 8.30 125 239

241-BX-105 8.30 125 239

241-BX-106 8.50 125 224

241-BX-107 8.30 125 239

241-BX-108 8.30 125 239

241-BX-109 8.30 125 239

241-BX-110 8.20 125 246

241-BX-111 9.20 125 173

241-BX-112 8.50 125 224

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

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Table 5 - BY Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 15)1,2

(kips)

241-BY-101 9.50 125 288

241-BY-102 9.65 125 277

241-BY-103 9.59 125 282

241-BY-104 9.50 125 288

241-BY-105 9.45 125 292

241-BY-106 9.40 125 296

241-BY-107 8.75 125 341

241-BY-108 8.99 125 327

241-BY-109 8.77 125 340

241-BY-110 9.04 125 323

241-BY-111 9.39 125 297

241-BY-112 8.50 125 256

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

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Table 6 - 100-Series C Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 15)1,2

(kips)

241-C-101 6.004 125 6504

241-C-102 6.004 125 6504

241-C-103 5.27 125 397

241-C-104 5.87 125 371

241-C-105 6.003 125 6503

241-C-106 5.77 125 376

241-C-107 6.004 125 6504

241-C-108 5.47 125 389

241-C-109 5.67 125 380

241-C-110 5.37 125 393

241-C-111 6.004 125 6504

241-C-112 5.57 125 384

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

3. From RPP-CALC-51994 (Ref. 24), soil depth analyzed up to 6.00 ft.

4. From RPP-RPT-53494 (Ref. 26), soil depth analyzed up to 6.00 ft.

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Table 7 - S Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 15)1,2

(kips)

241-S-101 6.31 125 450

241-S-102 7.31 125 416

241-S-103 7.31 125 416

241-S-104 6.85 125 434

241-S-105 6.33 125 449

241-S-106 6.56 125 443

241-S-107 6.67 125 440

241-S-108 6.36 125 448

241-S-109 6.56 125 443

241-S-110 7.54 125 406

241-S-111 7.50 125 408

241-S-112 7.24 125 419

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

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Table 8 - SX Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 15)1,2

(kips)

241-SX-101 6.32 112.3 377

241-SX-102 6.62 112.3 371

241-SX-103 6.72 112.3 369

241-SX-104 6.22 112.3 380

241-SX-105 6.52 112.3 373

241-SX-106 6.82 112.3 366

241-SX-107 6.32 112.3 377

241-SX-108 6.52 112.3 373

241-SX-109 6.52 112.3 373

241-SX-110 6.22 112.3 380

241-SX-111 6.52 112.3 373

241-SX-112 6.62 112.3 371

241-SX-113 6.22 112.3 380

241-SX-114 6.52 112.3 373

241-SX-115 6.62 112.3 371

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

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Table 9 - 100-Series T Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 15)1,2

(kips)

241-T-101 6.55 125 342

241-T-102 5.85 125 372

241-T-103 6.25 125 355

241-T-104 6.75 125 333

241-T-105 6.783 125 3223

241-T-106 7.783 125 2613

241-T-107 6.75 125 333

241-T-108 7.633 125 2613

241-T-109 8.633 125 2133

241-T-110 6.55 125 342

241-T-111 6.15 125 359

241-T-112 6.15 125 359

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

3. Soil depths and allowable concentrated loads for tanks 241-T-105, 241-T-106, 241-T-108, and 241-T-

109 have been updated due to installation of the T Farm Interim Surface Barrier. See RPP-CALC-

34494, Rev 0, for details.

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Table 10 - TX Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 15)1,2

(kips)

241-TX-101 10.11 125 241

241-TX-102 10.22 125 232

241-TX-103 10.15 125 238

241-TX-104 9.82 125 264

241-TX-105 10.27 125 228

241-TX-106 10.19 125 234

241-TX-107 10.09 125 243

241-TX-108 10.38 125 218

241-TX-109 9.24 125 308

241-TX-110 9.73 125 271

241-TX-111 9.44 125 293

241-TX-112 9.88 125 260

241-TX-113 8.59 125 350

241-TX-114 9.07 125 321

241-TX-115 8.92 125 331

241-TX-116 8.45 125 359

241-TX-117 9.58 125 282

241-TX-118 9.07 125 321

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

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Table 11 - TY Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 15)1,2

(kips)

241-TY-101 7.08 125 427

241-TY-102 6.90 125 433

241-TY-103 6.88 125 434

241-TY-104 7.05 125 428

241-TY-105 7.02 125 429

241-TY-106 7.39 125 413

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

Table 12 - 100-Series U Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 15)1,2

(kips)

241-U-101 6.35 125 350

241-U-102 6.25 125 355

241-U-103 6.15 125 359

241-U-104 6.45 125 346

241-U-105 6.15 125 359

241-U-106 5.75 125 376

241-U-107 6.95 125 324

241-U-108 6.05 125 363

241-U-109 5.65 125 381

241-U-110 7.15 125 315

241-U-111 6.15 125 359

241-U-112 6.05 125 363

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

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Table 13 - 200-Series B Tank Farm Soil and Allowable Concentrated Load Data

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 17)1,2

(kips)

241-B-201 11.45 125 142

241-B-202 11.45 125 142

241-B-203 11.45 125 142

241-B-204 11.43 125 142

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

Table 14 - 200-Series C Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 17)1,2

(kips)

241-C-201 10.70 125 142

241-C-202 10.70 125 142

241-C-203 10.70 125 142

241-C-204 10.70 125 142

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

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Table 15 - 200-Series T Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 17)1,2

(kips)

241-T-201 10.00 125 142

241-T-202 10.00 125 142

241-T-203 10.00 125 142

241-T-204 10.00 125 142

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

Table 16 - 200-Series U Tank Farm Soil and Allowable Concentrated Load Data.

Tank Number

Soil Depth

(Ref. 4)

(ft)

Soil Density

(Ref. 5)

(lbf/ft3)

Allowable

Concentrated

Load (Ref. 17)1,2

(kips)

241-U-201 9.50 125 142

241-U-202 9.50 125 142

241-U-203 9.50 125 142

241-U-204 9.50 125 142

1. The Allowable Concentrated Load is considered to be applied at grade over a 10-ft radius area.

2. Tracking of individual temporary loads <1000 lbf is not required however accumulation of such loads

over an area within 10 ft radius shall not exceed 10,000 lbf.

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RPP-11802, Rev. 3B

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ATTACHMENT A- LOAD TRACKING

A. GENERAL CONCENTRATED LOAD

1. The reference document for all entries shall be noted in the comment section of the DLL.

2. The permanent concentrated loads (PLC) and temporary (live) loads may be developed

from a survey of the concentrated loads on the tank or an upper bound value estimated

by the responsible engineer to envelop the current concentrated load for a specific tank

or for a group of tanks, such as entire tank farm. If an estimate is used for the load PCL,

then the basis for the estimate shall be included in the DLRSS or the DLL.

3. A group of concentrated loads (used to derive the PCL only) that act in a manner similar

to a uniform load may be removed from the PCL of the DLRSS if the following

requirements are met.

a. An engineering evaluation has been performed to qualify an equivalent uniform

load that has the same effect on the critical location within the tank structure as the

group of individual loads. This evaluation requires approval by a qualified

individual such as an engineering/analyses subject matter expert.

4. The following shall apply to recording concentrated loads in the DLL:

a. The responsible engineer is to apply appropriate rigor and precision when

performing the evaluation of the Permanent Concentrated Load and temporary live

loads to conservatively bound the summary of baseline loads.

B. BUFFER LOAD

A buffer load of 31,000 pounds is provided, therefore, the entire ACL limit on the DLL may be

used. The additional 31,000 pounds is allowed as an additional buffer load for the dome load log

tracking purposes. Upon approaching total utilization of the ACL limits the actual field

conditions should be evaluated. The buffer is to provide a workable range to allow for dome load

log variations and for exceeding the DLL ACL. This buffer however, is not to be intentionally

used. It is a buffer only.

C. PERMANENT LOADS

1. Facility modifications that result in permanent concentrated load changes of 1000 lb or

less may be excluded from the requirement to identify the PCL change in the DLL.

However, accumulation of such permanent loads should be reconciled in the DLL when

the accumulation approaches 10,0001b in a 10 foot radius. (e.g., after performance of a

Comprehensive Walkdown or a Special Focus Evaluation in accordance with TFC-ENG-

FACSUP-P-01 and TFC-ENG-FACSUP-D-0 1.1).

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RPP-11802, Rev. 3B

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2. The following items are examples of concentrated permanent loads that could exceed

1000 lb. These loads shall be evaluated in the DLR if they are permanently located over

the tank and/or within the exclusion zone, if they are judged to be significant:

• Installed equipment

• Piping (above grade and net weight below grade)

• Structures (including net weight of footings)

• Soil berms placed above grade

• Cover blocks

• Net weight of buried piping

• Permanent shielding.

D. TEMPORARY LOADS

1. Temporary live loads that result in concentrated load changes of 5000 lb or less may be

excluded from the requirement to identify the DLL change. However, accumulation of

such temporary live loads should be reconciled in the DLL when the accumulation

approaches 80,000 lb over the surface of the tank. (e.g., after performance of a

Comprehensive Walkdown or a Special Focus Evaluation in accordance with TFC-ENG-

FACSUP-P-01 and TFC-ENG-FACSUP-D-0 1. 1). Note: These temporary loads are

based on 20 psf live load and are separate from (in addition to) the ACL.

2. The following items are examples of temporary live loads. These loads shall be evaluated

in the DLL if they are permanently located over the tank and/or within the exclusion

zone, if they are judged to be significant:

• Temporary equipment

• UT Support Trailer

• 4 Concrete tie down bocks

• Soil berms placed above grade

• Staging cover blocks

• Temporary Shielding

• Tents

• Tool cribs.

E. TRANSIENT LOADS

1. Transient loads or a numeric value to account for transient loads shall be recorded in the

DLL. A description of the transient load or reason for the numeric entry shall be included

in the DLL.

2. Transient loads may be estimate, determined by actual weighing, determined from

manufacturers data, or some other means of closely determining the weight.

3. The responsible engineer is expected to use appropriate judgment as to what is exempt

from the controls of this procedure. When a significant accumulation of such loads occur,

the load should be reported to the shift manager for entry onto the dome load log.

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4. If the load is located over the tank, the full value of the load shall be recorded unless

otherwise justified. (see RPP-11356 as an acceptable method for estimating the load

transferred to the dome).

5. Transient loads applied within the exclusion zones of all SST and DST that are less than

or equal to the weight (approximately 150,000-1b) of the I 10-ton crane (Grove AT1100)

are exempt from the requirements for dome load controls. Therefore, under this

exemption, all references to "exclusion zone(s)" apply only to DCRTs, Catch Tanks, and

IMUSTs or transient loads in excess of 150,000 lb at DSTs and SSTs.

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