Six Hanford workers declined precautionary medical evaluation this morning after reporting odors outside the U Tank Farm. None reported symptoms. The employees were performing maintenance on electrical distribution equipment and were not in an area that requires use of a supplied-air respirator. Workers were instructed to leave the area, and access to the area has been restricted.

Industrial hygiene technicians gathered samples in the area. None of the monitoring and sampling results exceeded the action level for any chemical detected. Access to the area has been restored.