Subcontractor Installed an Inadequate Radiation Boundary

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Type:  Lessons Learned

Publisher:  Bechtel - DOE Contracts, Hanford Waste Treatment Plant - WTP/WTCC (Various Locations)

Published As:  Public


Topics:  Environmental Protection, Occupational Safety and Health, Management Systems, Construction/Project Management, Work Management/Planning, Radiation Protection

During the execution of a planned radiographic nondestructive evaluation of pipe welds, a WTP subcontractor failed to install an adequate radiation boundary around the radiography zone. A door providing access into the building where the radiography was taking place had been left unposted. An apparent cause evaluation identified the primary cause as less than adequate check of work by both the radiographic vendor and BNI oversight during the pre-job walk-down and verification of the NDE barricade. Lesson Learned: The key takeaway from this incident is that a change in approach to performing the work coupled with a sense of urgency to complete the task resulted in inadequate evaluation of the potential hazards.

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