ENS 55108

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v t e ENS Event
08:00 Feb 13, 2021
Title	Source Rod Leaking
Event Description	The following information was obtained from the state of California, Department of Public Health - Radiologic Health Branch (RHB) via email: On 2/16/21, the licensee contacted RHB to report that a contamination incident occurred during cutting of a source rod of a moisture density gauge. The gauge involved is a Troxler Model 3440, S/N 17263, originally containing 8 mCi of Cs-137 and 40 mCi of Am-241. The source serial number is 50-6634 and the 'IAEA Certificate of Competent Authority Special Form Radioactive Materials' that was provided by the licensee identifies the source as QSA Global Models XN30/0, XN 30/1, or 30XN/2, and states that the sources are single encapsulated. On 2/13/21, the licensee was attempting to replace a source rod on a customer's nuclear gauge. After removing the source rod tip, licensee surveys of the area detected contamination. Wipes of the rod and work area were counted using a Ludlum 3030, S/N 222793, calibrated 10/12/20, and indicated low levels of beta contamination (approximately 25 nCi total) apparently due to a leaking source. It is not believed the cutting of the source rod breached the Cs-137 source. The contamination was confined to a small portion of a countertop, a vise, a hack saw blade and the floor directly below the work area. The contaminated area was wiped with damp rags and contaminated items and rags were collected into plastic bags and then placed into a 5-gallon bucket. The source and the piece of the source rod cut off were placed into a large lead container. The area was subsequently surveyed again, and no radioactivity was detected. No contamination was detected on clothes or shoes. California Report ID: 5010-021621

ENS 55108 +/-
Where
Pacific Calibration Specialties Antioch, California (NRC Region 4)
License number:	5634-07
Organization:	California Radiation Control Prgm
Reporting

Agreement State
Time - Person (Reporting Time:+153.03 h6.376 days <br />0.911 weeks <br />0.21 months <br />)
Opened:	Nika Hewdikaram 17:02 Feb 19, 2021
NRC Officer:	Howie Crouch
Last Updated:	Feb 19, 2021
55108 - NRC Website
v • d • e

v t e Emergency Notification System
Pacific Calibration Specialties with Agreement State
WEEKMONTHYEAR2021-02-13T08:00:00 [Table view]
[ENS list for Pacific Calibration Specialties]

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