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Solid and Hazardous Waste Flashcards

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

Read the first 7 Solid and Hazardous Waste flashcards as text

  1. Which characteristic of ignitability is defined as a liquid with a flash point below what temperature?

    Answer: 100°F (37.8°C)

    Under RCRA, a liquid is ignitable (D001) if it has a flash point less than 60°C (140°F).

  2. In a Risk-Based Corrective Action (RBCA) framework for contaminated sites, what is the primary basis for setting cleanup goals?

    Answer: Acceptable risk to human health and the environment

    RBCA sets site-specific cleanup goals based on acceptable risk levels (typically 10⁻⁶ cancer risk), site exposure pathways, and receptor populations.

  3. What is the function of a leachate collection system in a modern sanitary landfill?

    Answer: Capture and remove contaminated liquid that percolates through waste

    A leachate collection system (LCS) captures liquid that passes through waste and collects it above the liner for treatment and disposal.

  4. Which waste is categorized as a P-listed (acutely hazardous) waste under RCRA?

    Answer: Discarded commercial chemical product warfarin at concentrations >0.3%

    P-listed wastes are discarded commercial chemical products that are acutely hazardous; warfarin at >0.3% concentration (P001) is a classic example.

  5. Underground storage tanks (USTs) containing petroleum are regulated under which RCRA subtitle?

    Answer: Subtitle I

    RCRA Subtitle I establishes the regulatory program for underground storage tanks (USTs), including release detection and corrective action requirements.

  6. During a Superfund remedial investigation (RI), what is the primary objective?

    Answer: Characterize the nature and extent of contamination and assess risk

    The RI characterizes site contamination, defines exposure pathways, and supports the baseline risk assessment that informs remedy selection.

  7. A waste exhibiting the reactivity characteristic (D003) is defined as one that is:

    Answer: Normally unstable and reacts violently with water or generates toxic gases

    Reactive wastes are unstable under normal conditions, react violently with water, generate toxic fumes, or are capable of detonation.