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Disposition of Hazardous Materials Flashcards

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  1. Under RCRA Land Disposal Restrictions (LDRs), what must generators do before sending restricted hazardous waste to a land disposal unit?

    Answer: Ensure the waste meets treatment standards and notify the receiving facility

    Generators must ensure restricted wastes meet LDR treatment standards and provide a one-time written notice to the receiving TSDF.

  2. Which disposal method involves injecting treated or untreated hazardous waste into deep geologic formations and is regulated under the Safe Drinking Water Act?

    Answer: Deep well injection

    Deep well injection (Class I hazardous waste wells) is regulated under the Underground Injection Control program of the Safe Drinking Water Act.

  3. A small quantity generator (SQG) accumulating hazardous waste on-site must comply with which of the following?

    Answer: A 270-day accumulation limit and specific container/tank standards

    SQGs may accumulate hazardous waste for up to 270 days and must meet container and tank management standards under 40 CFR 262.

  4. Which technology-based treatment standard under LDRs allows land disposal of hazardous waste when the waste cannot practicably be treated to meet concentration-based standards?

    Answer: Treatability variance

    A treatability variance under 40 CFR 268.44 allows alternative treatment standards when wastes cannot meet established LDR standards.

  5. What is the primary purpose of a RCRA Corrective Action?

    Answer: To remediate releases of hazardous waste from TSD facilities

    RCRA Corrective Action (Subtitle C, Section 3004(u)) requires TSDFs to investigate and clean up releases of hazardous waste or constituents.

  6. Under DOT regulations, what information is required on a label affixed to a hazardous materials package?

    Answer: Primary hazard class label and any required subsidiary hazard labels

    DOT requires hazardous materials packages to display the primary hazard class label and any required subsidiary hazard labels per 49 CFR 172 Subpart E.

  7. Which section of RCRA authorizes EPA to take emergency action, including ordering immediate cessation of hazardous waste activities, when there is an imminent and substantial endangerment?

    Answer: Section 7003 (imminent hazard)

    RCRA Section 7003 authorizes EPA to seek judicial or administrative action to address imminent and substantial endangerment from hazardous waste.