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Disposition of Hazardous Materials Flashcards

7 cards from real CHMM practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. Under RCRA, what is the maximum accumulation time for large quantity generators (LQGs) before hazardous waste must be shipped off-site?

    Answer: 90 days

    LQGs may accumulate hazardous waste on-site for no more than 90 days without a storage permit.

  2. Which document must accompany a hazardous waste shipment from the point of generation to the disposal facility?

    Answer: Uniform Hazardous Waste Manifest

    The Uniform Hazardous Waste Manifest (EPA Form 8700-22) must travel with hazardous waste shipments under RCRA.

  3. A facility generates used oil contaminated with a listed hazardous waste solvent. How must this mixture be managed?

    Answer: As hazardous waste under RCRA Subtitle C

    Used oil mixed with listed hazardous waste is regulated as hazardous waste under RCRA Subtitle C, not as used oil.

  4. What is the primary regulatory mechanism that allows hazardous waste to be reclaimed and reused without full RCRA Subtitle C regulation?

    Answer: Hazardous waste recycling exemption

    Certain hazardous waste recycling activities are excluded or exempt from full RCRA regulation under 40 CFR 261.2 and related provisions.

  5. Which RCRA standard applies to the treatment, storage, and disposal of hazardous waste at a permitted facility?

    Answer: 40 CFR Part 264

    40 CFR Part 264 sets standards for owners and operators of permitted hazardous waste TSD facilities.

  6. When a listed hazardous waste is treated and no longer exhibits hazardous characteristics, it may still be regulated as hazardous waste. Which rule requires this?

    Answer: Derived-from rule

    The derived-from rule under 40 CFR 261.3(c) states that residuals derived from treating listed hazardous waste remain listed hazardous waste.

  7. A company discovers that drums of waste were sent to an unpermitted disposal site years ago. Under CERCLA, who can be held liable for cleanup costs?

    Answer: Current and former owners, operators, generators, and transporters

    CERCLA imposes strict, joint, and several liability on a broad class of potentially responsible parties including past and present owners, operators, generators, and transporters.