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| Start date | Reporting criterion | Title | Event description | System | LER | |
|---|---|---|---|---|---|---|
| ENS 51947 | 20 May 2016 05:00:00 | Agreement State | Fixed Nuclear Gauge Readings Higher than Expected | The following information was received via E-mail: While performing routine shutter tests of fixed gauges, the licensee noted higher than expected readings from a fixed gauge when the shutter was closed. The expected reading was 2 millirem per hour and the readings during the shutter check were found to be 6 millirem per hour. The licensee has contacted the manufacturer and a field engineer is expected on Monday, May 23, 2016. The gauge is identified as an Ohmart SR-2, Serial Number M-2688, containing 4500 milliCuries of Cesium-137. The State of Arkansas is awaiting a written report from the licensee with a report of the findings of the field engineer." Arkansas Event Number: AR-2016-002
The following was received via email: A field service engineer was on site on June 20, 2016. Using multiple survey meters, including the licensee's meter, the higher radiation readings could not be duplicated. The field service engineer surveyed other gauges of the same type and found the radiation readings with the expected range of readings. The cause of the abnormal readings on the day of the shutter checks is unknown. The Department (Arkansas Department of Health) has asked the licensee to make notification if abnormal readings are detected in the future and the Department will follow up during future inspections. The Department considers this event to be closed. Notified R4DO (Haire) and NMSS (email). |