Feedback and Improvement

DOE-STD-1120-2005/Vol. 2

cause and develop an approach to bring the exposures to ALARA. The results of the investigation

indicated that the building HVAC system contributed to the formation of fugitive dust by allowing

contamination to be continually resuspended. Three alternatives were proposed to correct this situation:

(1) discontinue activities within the area; (2) have workers wear respiratory protection equipment while

performing work within the area; and (3) the preferred alternative of reducing the forced air into the area

by installing an in-line damper. Option three was implemented and the CAM within the area was

monitored closely for the next two weeks and was found to be within expected acceptable values.

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