ML21067A193
| ML21067A193 | |
| Person / Time | |
|---|---|
| Site: | Zion File:ZionSolutions icon.png (DPR-039, DPR-048) |
| Issue date: | 02/10/2021 |
| From: | ZionSolutions |
| To: | Office of Nuclear Material Safety and Safeguards |
| Shared Package | |
| ML21067A225 | List:
|
| References | |
| ZS-2021-0001 | |
| Download: ML21067A193 (3) | |
Text
DETAILS Division:
RA;#175;#LT Name:
LTP Revision required after non-impacted storm drain piping became impacted
==
Description:==
On Tuesday, May 7, 2019, C/LT Technicians collected sediment samples from the bottom of manhole access to the Switchyard storm drain in survey units 10214C and 10214D. The sediment sample collected from the west access point resulted in Cs-137 and Co-60 positively detected at 2.22E+00 pCi/g and 1.80E-01pCi/g respectively. When directly compared against the Operational DCGLs for subsurface soil, the analytical results for the sample (L2-10214C-RJGS-001SM) produced a SOF of 1.514. Consequently, the northern storm drains previously classified as non-impacted are now impacted due to discovery.
Start Date:
11/14/2019 4:27:00 PM End Date:
12/18/2019 12:00:00 AM Status:
Completed PROPERTIES SIG Level:
3 Date/Time Initiated:
11/14/2019 4:27:00 PM Brief
Description:
LTP Revision required after non-impacted storm drain piping became impacted
==
Description:==
On Tuesday, May 7, 2019, C/LT Technicians collected sediment samples from the bottom of manhole access to the Switchyard storm drain in survey units 10214C and 10214D. The sediment sample collected from the west access point resulted in Cs-137 and Co-60 positively detected at 2.22E+00 pCi/g and 1.80E-01pCi/g respectively. When directly compared against the Operational DCGLs for subsurface soil, the analytical results for the sample (L2-10214C-RJGS-001SM) produced a SOF of 1.514. Consequently, the northern storm drains previously classified as non-impacted are now impacted due to discovery.
Immediate Actions:
Notified Supervision and NRC Recommended Actions:
Update TSD 14-016,Description of Embedded Piping, Penetrations, and Buried Pipe to Remain in Zion End State. Perform a 50.59 review of TSD change. Perform a revision to Zion LTP.
Date Discovered:
11/14/2019 Issue Identified By:
Initiator Related Documents:
Reviewed Date/Time:
11/15/2019 12:00:00 AM Maintenance Rule Applicable?
False Reportability Applicable?
False Operability Review Required?
False CAQ/NONCAQ?
CAQ Page 1 of 3 ES-ZION-CR-2019-0165 Page 1 of 3 Condition Report
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ENERGYSOLUTIONS I
1 l
l 1
1
50.75g Issue?
True 7230D Issue?
False MRC Review Meeting Date:
MRC Approval:
False MRC Comments:
Responsibilities Initator:
Jerry X. Houff Shift Manager:
Jason P. Pacheco-ext CR Owner:
Timothy W. Plutchak Events Step Person Start Date End Date Initiation:
Jerry X. Houff 11/14/2019 11/14/2019 OP Review:
Jason P. Pacheco-ext 11/14/2019 11/15/2019 Screening:
Timothy W. Plutchak 11/15/2019 11/21/2019 MRC Review:
Timothy W. Plutchak Pending CA Completion:
Timothy W. Plutchak 11/21/2019 12/18/2019 Verify and Closure:
Timothy W. Plutchak 11/21/2019 12/18/2019 Page 2 of 3 ES-ZION-CR-2019-0165 Page 2 of 3 Condition Report
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ENERGYSOLUTIONS
Action - ES-ZION-ACT-2019-0158 Action Type:
Due Date:
Date Completed:
12/12/2019 12/17/2019 Action:
Update TSD 14-016, Description of Embedded Piping, Penetrations, and Buried Pipe to Remain in Zion End State. Perform a revision to Zion LTP.
Results:
TSD 14-016 ( revision 1) completed, 50.59 completed, peer reviews and department manager approval completed. New revision of TSD 14-016 issued on 12/17/19.
Assigned To:
Gerald Wood-ext Corrective Action Action - ES-ZION-ACT-2019-0159 Action Type:
Due Date:
Date Completed:
12/12/2019 12/5/2019 Action:
Perform a 50.59 Review of TSD14-016 change.
Results:
A 50.59 has been performed for TSD 14-016 Revision 1 and is attached.This action can be closed.SKM_C454e19120507070.pdf Assigned To:
Jerry X. Houff Corrective Action Trends Cause Codes:
A7-B2-Radiological - Hazardous material problem Event Codes:
3E - Radiation Protection - Equipment or area contamination Verification Verification:
Timothy W. Plutchak 12/18/2019 Verification Comments Expected response actions have been satisfied.
Page 3 of 3 ES-ZION-CR-2019-0165 Page 3 of 3 Condition Report
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ENERGYSOLUTIONS