ML20279A785
| ML20279A785 | |
| Person / Time | |
|---|---|
| Site: | PROJ0734 |
| Issue date: | 06/10/2020 |
| From: | Lloyd Desotell, Romanowski L Division of Decommissioning, Uranium Recovery and Waste Programs, Savannah River Remediation |
| To: | White A US Dept of Energy, Savannah River Operations Office |
| Lloyd Desotell/NMSS/DUWP | |
| Shared Package | |
| ML20279A780 | List: |
| References | |
| SRR-CWDA-2020-00052, Rev 0 | |
| Download: ML20279A785 (20) | |
Text
Savannah River Site Aiken, SC 29808 www.srremediation.com
Safety Integrity Ownership Teamwork Continuous Improvement SRR-CWDA-2020-00052 Revision 0 June 10, 2020 RSM Track #: 10667 Aaron White Senior Technical Program Manager for Waste Removal and Tank Closure U. S. DOE Savannah River Site Waste Disposition Programs Division
Dear Mr. White:
FOLLOW-UP TO TANKS 12H AND 16H GROUTING OPERATIONS DOCUMENT REQUEST IN SUPPORT OF U.S. NUCLEAR REGULATORY COMMISSION F AND H AREA TANK FARMS MONITORING ACTIVITIES Ref:
- 1. E-mail, R. Gladney to A. White, NRC Document Request for SRS, dated February 19, 2020.
- 2. E-mail, A. White to R. Gladney, C. Barr and L. Desotell, FW: NRC Document Request, dated February 20, 2020.
The following information is being provided in follow-up to a documentation request concerning Tank 12H and Tank 16H grouting operations in support of U. S. Nuclear Regulatory Commission (NRC) F and H-Area Tank Farms monitoring activities (Reference 1). The documentation requested includes the following:
- 1. C-ESR-G-00003. Waltz, R.S. SRS High Level Waste Tank Crack and Leak Information. Revision 13. Aiken, South Carolina: Savannah River Site. 26 October 2015.
{ML14079A609 is Revision 10; need update for Tank 12H}
- 2. SRR-CWDA-2012-00051. Critical Assumptions in the Tank Farm Operational Closure Documentation Regarding Waste Tank Internal Configurations. Revision 2. Aiken, South Carolina: Savannah River Site. January 11, 2016.
- 3. SRR-LWE-2016-00036.
- Voegtlen, R.O.
Tank 12 Final Configuration Report Inputs. Revision 2. Aiken, South Carolina: Savannah River Site. December 2016.
Aaron White SRR-CWDA-2020-00052 Revision 0 Page 2
- 4. Primary Work Packages for grouting of Tank 12: (i) 01337683-33 (grout preparations for bulk fill and riser fill grout); (ii) 01337683-51 (equipment fill grout preparation and operations);
(iii/iv) 01337683-50 and 01337683-31 (cooling coil grouting).
- 5. (number not included on original NRC request list)
- 6. Tanks 16H and 12H Lessons Learned report, if documentation exists.
- 7. Documentation associated with the supplier deviation disposition request SDDR No. 13307, which addressed the two highest bleed-water test results for Tank 16H, which were 3.3 and 8.9 percent (SRR-CWDA-2015-00159), along with any associated deviation disposition documents.
- 8. Confirmation that the water-to-grout interface was maintained throughout the process of grouting Tank 12H cooling coils. WSRC-STI-2008-00298 called for filling intact cooling coils with water prior to grout placement to remove air, prevent air entrainment, and ensure that a liquid-to-liquid interface is maintained during cooling coil grouting. DOE previously provided confirmation that the water-to-grout interface was maintained throughout the process of grouting Tank 16H cooling coils.
- 9. (number not included on original NRC request list)
- 10. Documentation of a comparison between the pre-estimated void volume of cooling coils in Tank 12H and the final grout volume placed into the coils.
- 11. Drawings of the Tank 12H ventilation ductwork, registers, camera risers, etc., as were previously provided for review of Tank 16H grouting operations.
- 12. Clarify whether 4 or 6 risers are present and identify those used for grouting the Tank 12H annulus, and those used to collect video. Clarify which risers were used as grout entry points for Tank 12H primary grouting.
- 13. 5 accepted and 5 rejected Tank 12H Grout Batch Tickets; include batch tickets for both Grade 100 and Grade 120 slag batches.
- 14. Tank 12H Grouting Operations video on DVD, including early video of non-grouted tank/annulus containing standing water being pumped out prior to commencement of grouting operations, early grouting operations of tank/annulus, Lift 6 cracks and any other known cracks, late grouting operations that demonstrate the lack of mounding beneath tremie pipes, and video that demonstrates standing water in the final lifts before riser grouting began. Please provide a grout schedule typically provided with the video, including a schedule of cooling coil grouting.
Aaron White SRR-CWDA-2020-00052 Revision 0 Page 3
Below is the information being provided in response to the NRC request.
Document Request Item #1:
Document C-ESR-G-00003, Revision 13, was previously provided to the NRC via email on February 20, 2020 (Reference 2).
Document Request Item #2:
Document SRR-CWDA-2012-00051, Revision 2, was provided to the NRC via email on February 20, 2020 (Reference 2).
Document Request Item #3:
Document SRR-LWE-2016-00036, Revision 2, was provided to the NRC via email on February 20, 2020 (Reference 2).
Document Request Item #4:
Electronic copies of the requested work orders, including some of the pertinent attachments, will be provided to the NRC along with transmittal of this letter. The documentation to be provided includes:
- i.
Work Order No. 01337683-33, Placement of Bulk Fill Grout Tank 12 Work Order No. 01337683-33-A, Tank 12 Tremie Installation Steps Work Order No. 01337683-33-B, Tank 12 Cleaning/Pigging of Slickline HTF-SKM-2015-00021, Tank 12 Grout Placement Plan ii.
Work Order N0. 01337683-51, Tank 12 Closure Constr Perform Equipment Grouting iii.
Work Order No. 01337683-50, TK 12 Grout Failed Coils iv.
Work Order No. 01337683-31, Flush and Grouting of Intact TK. 12 Chromate Cooling Coils Work Order No. 01337683-33-A, Tank 12 Coil Flushing Spreadsheet Work Order No. 01337683-33-F, Coil Grout Spreadsheet Sketch HTF-SKM-2015-00010, Tank 12 Flush & Grout Fill Configuration Intact Coils 1337683-31 Document Request Item #6:
Documents SRR-TCR-2015-00024, Tank 16 Grouting Lessons Learned, and SRR-TCR-2016-00007, Tank 12 Grouting Liquid Spill Lessons Learned, will be provided to the NRC along with transmittal of this letter.
Document Request Item #7:
A copy of Suppler Deviation Disposition Request No. 13307 will be provided to the NRC along with transmittal of this letter. In addition, a copy of technical review package USQ-HTF-2015-00706, Supplier Deviation Disposition Request (SDDR) Number 13307 - Deviation from Specification C-SPP-F-00055, Rev 4, will also be provided.
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Document Request Item #8:
As outlined in Work Package No. 01337683-31, provided under Item 4(iv) of this letter, the process for flushing and grouting of the intact Tank 12 cooling coils involved the following steps. The cooling coils where first flushed with water and the chromate laden flush water was sent directly to Tank 10 via hose connection. At the conclusion of the flushing activities, the coils remained full of flush water. Record of flushing is available in Attachment A to Work Package No.
01337683-31. To grout the coils, the outlet of the coil was connected to a stand-alone tote via hose.
Grout was pumped through the coil, displacing the water, until the volume of the cooling coil plus an additional 10 gallons of grout had been pumped. The process was repeated for each of the intact cooling coils. Record of grouting is available in Attachment F to Work Package No. 01337683-31 which was provided under Document Request Item #4(iv).
Document Request Item #10:
As noted in the response to Document Request Item #8, the coils were filled with grout until the total volume plus 10 additional gallons were pumped into the coils. A record of these steps being completed is provided in Attachment F to Work Package No. 01337683-31 which was provided under Document Request Item #4(iv).
Document Request Item #11:
A drawing of the ventilation ductwork, W146593, Savannah River Plant 200 Area Buildings 241 F & H Dehumidification System Heating and Ventilation, will be provided to the NRC once the document can be cleared for release. Clearance of this particular drawing will be delayed until classification officials, currently teleworking as a response to COVID-19, return to the site. to this letter provides a layout of the Tank 12 Riser Locations.
Document Request Item #12:
The camera risers used to collect video are shown in Attachment 2 to this letter. In the video footage, the riser number the video is being taken from is identified on the screen.
The grout slickline arrangement, and associated risers used for grouting is shown in Attachment 3 to this letter. For Bulk fill, Risers 1, 3, 5 and 8 were all utilized during the filling process. For annulus grouting, both the East and West annulus risers were utilized.
Document Request Item #13:
Five accepted grout batch tickets are provided in Attachment 4 to this letter. Batch ticket No.
42696 and No. 42713 represent when Grade 100 slag was being used, all others represent Grade 120 slag. Attachment 5 contains five rejected grout batch tickets, all representing Grade 120 slag.
There were no rejected grout batch tickets while utilizing Grade 100 slag.
Aaron White SRR-CWDA-2020-00052 Revision 0 Page 5
Document Request Item #14: to this letter provides a grouting calendar for Tank 12. This calendar was also previously provided to the NRC via email on February 20, 2020 (Reference 2). A full set of Tank 12 grouting DVDs will be provided to the NRC as follow-up to transmittal of this memorandum.
Table 1 provides information regarding the date and time that the specific grouting activities requested by the NRC are captured on video.
Table 1: NRC Tank 12 Video Requests Request VideoDate/Time Comments Earlyvideoofnongrouted tank/annuluscontaining standingwaterbeingpumped outpriortocommencementof groutingoperations Tankprimaryinspection 01/19/2016@09:51am
Annulusinspectionshows standingwater01/19/2016@
10:08am
Standingwaterpumpedoutof annulus02/05/2016.Annulus videoinspectionstartsat07:24 amon02/05/2016.
Tankfloorappearedmostly dry.Standingwaterintank primarywasnotpumpedout priortogrouting.
Standingwaterinannulus.
waspumpedoutpriorto grouting.
Earlygroutingoperationsof tank/annulus Tankinteriorgroutingbeganon 01/19/2016.Initialvideo@12:04 pm
Annulusgroutingbeganon 02/08/2016.Initialvideo@11:37 am
Lift6cracksandanyother knowncracks 02/22/2016@09:13am Noothercrackswerenoted.
Lategroutingoperationsthat demonstratethelackof moundingbeneathtremiepipes 03/02/2016@08:59am
03/07/2016@08:29am
Videothatdemonstrates standingwaterinthefinallifts beforerisergroutingbegan StandingwaterviewfromRiser1 03/02/2016@09:01am
StandingwaterundertheCenter Riser03/07/2016@08:36am
StandingwaterinAnnulusduct 03/02/2016@07:51am
Aaron White SRR-CWDA-2020-00052 Revision 0 Page 6
If you have any questions, please contact me at 557-9900.
Sincerely, Larry B Romanowski Manager, Closure and Disposal Determinations Waste Disposal Authority c:
S. A Thomas, 705-1C K. H. Rosenberger, 705-1C B. A. Martin, 705-1C M. A. Layton, 705-1C LARRY ROMANOWSKI (Affiliate)
Digitally signed by LARRY ROMANOWSKI (Affiliate)
Date: 2020.06.10 20:13:59 -04'00'
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Aaron White SRR-CWDA-2020-00052 Revision 0 Page 10 Accepted Batch tickets
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Aaron White SRR-CWDA-2020-00052 Revision 0 Page 15 Rejected Batch Tickets
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