The inspectors identified a noncited violation of
10 CFR 20.1902 because the licensee failed to post a radiation area conspicuously. On May 14, 2008, the inspectors toured the hot machine shop and noted a box with
high radiation area signs attached. Dose rates around the box ranged from 55 to 90 millirems per hour at 30 centimeters. The inspectors noted there was no posting to identify the radiation area. The nearest radiation area posting was on the entry door of the decontamination room, outside the hot machine shop. As a result of the inspectors finding, the licensee erected a rope barricade around the radiation area and posted it conspicuously. The finding was more than minor because it was associated with one of the cornerstone attributes and the finding affected the
Occupational Radiation Safety cornerstone objective, in that, uninformed workers could unknowingly accrue additional radiation dose. Because the finding involved the potential for unplanned, unintended dose resulting from conditions that were contrary to NRC regulations, the finding was evaluated using the
Occupational Radiation Safety Significance Determination Process. The inspectors determined that the finding had very low safety significance because it was not: (1) an as low as reasonably achievable finding, (2) an
overexposure, (3) a
substantial potential for overexposure, or (4) an inability to assess dose. The finding also had a crosscutting aspect in the area of human performance, resource component, because the licensee did not have complete procedures
H.2.c] (Section 2OS1.2)