Bulking

Bulking is the process of combining (bulking) some wastes together and placing them in bulk containers (like tanks or vacuum trucks) in order to make transportation much easier and efficient. It occurs in the final staging area.

OSHA notes that "bulking should be performed only after thorough waste characterization by trained and experienced personnel. The preliminary tests described earlier under Characterization provide only a general indication of the nature of the individual wastes. In most cases, additional sampling and analysis to further characterize the wastes, and compatibility tests (in which small quantities of different wastes are mixed together under controlled conditions and observed for signs of incompatibility such as vapor generation and heat of reaction) should be conducted."

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