A self-revealing finding of very low safety significance and an associated
NCV were identified for the licensees failure to comply with
Technical Specification 5.7.1.b for access control to
high radiation areas of the plant. As a result of poor human performance, a contract radiation worker received an electronic dosimeter high doserate alarm while performing
steam generator set-up activities, when he inappropriately entered a
high radiation area of the plant on a non-high radiation area radiation work permit. As corrective actions, the licensee provided additional training to the individuals involved and reinforced the expectations for
high radiation area access control. The finding was more than minor because it was associated with the Program/Process attribute of the
Occupational Radiation Safety Cornerstone and potentially affected the cornerstone objective to ensure adequate protection of worker health and safety from exposure to radiation, in that the failure to implement controls for
high radiation area entry may result in unplanned dose. The finding was determined to be of very low safety significance because the finding did not involve As-Low-As-Is-Reasonably-Achievable (
ALARA) planning; it did not involve an
overexposure; there was not a substantial potential for a worker
overexposure; and the licensee=s ability to assess worker dose was not compromised. The cause of the finding is related to a cross-cutting aspect of human performance in work control (
H.3(b)). (Section 2OS1
