ENS 48178
ENS Event | |
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21:34 Aug 7, 2012 | |
Title | Dry Fuel Storage Transfer Trailer Detected with Removable Contamination |
Event Description | On Aug 7, 2012 at 1734 EDT, PPL Susquehanna personnel were in the process of releasing the Dry Fuel Storage Transfer Trailer from the Unit 1 Reactor Building 101 rail bay and detected removable contamination on the trailer.
PPL Susquehanna Health Physics personnel identified removable surface contamination up to 30,000 dpm/100 sq cm on the transfer trailer. Gamma spectroscopy performed on smears identified the presence of Cs-137. No other radionuclides were identified on any of the analyzed smears. Cs-137, by itself, is not a nuclide characteristic to Susquehanna due to Susquehanna's high fuel integrity performance. In addition, no loose surface alpha contamination was identified. The area around the trailer, located in the 101 bay, has been posted and controlled as a contaminated area. Decontamination of the transfer trailer is in progress. Onsite surveys of areas that were occupied by the transfer trailer, indicate no removable surface contamination. In addition, no Susquehanna personnel contamination events have been attributed to the contamination found on the transfer trailer. Although the receipt of this transfer trailer was not identified as an incoming radioactive shipment to Susquehanna from its' supplier, this event is immediately reportable to the NRC Operations Center in accordance with 10 CFR 20.1906(d), since the Department of Transportation acceptance limits identified in 49 CFR 173.433 for this type of container are 22,000 DPM/100 sq. cm and PPL Health Physics personnel identified removable radioactive surface contamination in excess of the limits of 10 CFR 71.87(i) which refer to the DOT limits of 49 CFR 173.433. The final delivery carrier and NRC Senior Resident Inspector have been notified." The licensee will be notifying the Commonwealth of Pennsylvania. |
Where | |
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Susquehanna Pennsylvania (NRC Region 1) | |
Reporting | |
10 CFR 20.1906(d)(1) | |
Time - Person (Reporting Time:+67.65 h2.819 days <br />0.403 weeks <br />0.0927 months <br />) | |
Opened: | Ron Fry 17:13 Aug 10, 2012 |
NRC Officer: | John Knoke |
Last Updated: | Aug 10, 2012 |
48178 - NRC Website
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Unit 1 | |
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Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
Unit 2 | |
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Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
WEEKMONTHYEARENS 526582017-04-03T14:45:0003 April 2017 14:45:00
[Table view]10 CFR 20.1906(d)(2), 10 CFR 20.1906(d)(1) Exclusive Use Transport Vehicle Exceeded Contact Dose Rates ENS 481782012-08-07T21:34:0007 August 2012 21:34:00 10 CFR 20.1906(d)(1) Dry Fuel Storage Transfer Trailer Detected with Removable Contamination 2017-04-03T14:45:00 | |