225-B Pool Cell 5 Liner Leak Investigation Page: 4 of 56
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1 WHC-SD-WM-TI-745
Rev. 0
TABLE OF CONTENTS
1.0 INTRODUCTION. ...... . ............ . ...... 3
2.0 BACKGROUND. .................. .... . ....... 3
2.1 Configuration of Pool Cell Liner Leak Detection System....... 3
2.2 Periodic Leak Detector Testing.. ... .. ....... .. 6
2.3 Pool Cell 5 Sump Alarms.... ...... . ...... . . 6
3.0 ACTIONS TAKEN TO DATE. . ............ ........ 7
3.1 Actions Taken to Identify the Leak Source. . ........ 7
3.2 Actions Taken to Evaluate Implications on Safe Capsule Storage . 9
3.3 Actions Taken to Ensure Continued Safe Capsule Storage ...... 18
4.0 CURRENT STATUS. . ....... ......... 20
4.1 Status of Pool Cell 5 ...... .......... 20
4.2 Status of Occurrence Report Actions ...... ........20
4.3 Status of Actions Identified in Plant Review Committee Meeting . 21
5.0 FOLLOW-ON ACTIONS ............... . . ....... 22
6.0 APPENDIX . . ... .............. . ...... 23
6.1 Sump Level Measurements ....... . ........ 23
6.2 Sump Video Inspection Results. ........... ....... 26
6.3 Interviews with Plant Personnel ....... .........44
LIST OF TABLES
Table 3.1.1 Pool Cell Sump Sample Results and Comparison.. ....... 8
Table 3.2.2 WESF Pool Cell Evaporation Rates .i. ..... ...... .11
Table 3.3.1 Alternate Capsule Storage Options .. ..... .......19
Table 6.1.1 Pool Cell 5 Sump Levels, Inches ...... . ....... 23
Table 6.1.2 Pool Cell 1 And 2 Sump Levels, Inches . .........24
Table 6.1.3 Pool Cell 3-4, 6-8, and 12 Sump Levels, Inches .......24
Table 6.1.4 Pool Cell 9-11 Sump Levels, Inches ....... ......25
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Rasmussen, J.H., Westinghouse Hanford. 225-B Pool Cell 5 Liner Leak Investigation, report, June 7, 1996; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc706165/m1/4/: accessed April 24, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.