ENS 48438

v t e ENS Event
05:00 Sep 13, 2012
Title	Agreement State Report - Stuck Shutter on a Fixed Nuclear Gauge
Event Description	The following information was received from the State of Louisiana via fax: Event date and Time: [On] 09/13/2012, the RSO for Marathon Petroleum called to be in compliance with Condition #4 of his radioactive material license. Event Location: Production/process field at the refinery located at 4663 Airline Highway, Garyville, LA 70051 Event type: Fixed gauge, stuck shutter Event description: On 09/13/2012, the RSO for Marathon called to report a stuck shutter on a fixed level gauge utilized in a process in the refinery. There was no possible exposure to the plant workers because the gauge was installed on process [equipment] and the shutter remaining [open] was not a problem. [The RSO] called in the incident to comply with Condition #4 of Marathon's Radioactive Material License. The gauge is an Ohmart Vega gauge Model SHFBI, loaded with 20 mCi of Cs-137. The gauge has been [exposed to] the elements in excess of 10 years and the shutter malfunctioned due to corrosion in the mechanism. Eight [gauges] were evaluated and only one needed repair. The manufacturer stated that it appeared to be from being in the elements. The manufacturer stated that they were looking into finding a modification to shield the shutter mechanism from the elements. The Department [Louisiana Department of Environmental Quality] considers this item closed. Event Report ID No.: LA 12-0005

ENS 48438 +/-
Where
Marathon Petroleum Company Garyville, Louisiana (NRC Region 4)
License number:	LA-3239, AI 3
Organization:	Louisiana Radiation Protection Div
Reporting

Agreement State
Time - Person (Reporting Time:+996.12 h41.505 days <br />5.929 weeks <br />1.364 months <br />)
Opened:	James Pate 17:07 Oct 24, 2012
NRC Officer:	Steve Sandin
Last Updated:	Oct 24, 2012
48438 - NRC Website
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v t e Emergency Notification System
Marathon Petroleum Company with Agreement State
WEEKMONTHYEAR2012-09-13T05:00:00 [Table view]
[ENS list for Marathon Petroleum Company]

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