Certified Hazardous Materials Manager Practice Exam 2025 – Comprehensive Test Prep

Question: 1 / 400

Which of the following is not included in the RCRA solid waste definition?

A solid or liquid material which is being discarded

A semi-solid material which is being discarded

A contained gaseous material which is being discarded

Domestic sewage and mixtures of domestic sewage

The Resource Conservation and Recovery Act (RCRA) defines solid waste broadly to encompass a wide variety of discarded materials, but it explicitly excludes certain categories from this definition to avoid regulatory complications. Domestic sewage and mixtures of domestic sewage fall under specific regulations and are not classified as solid waste under RCRA.

The rationale for this exclusion lies in the fact that domestic sewage is managed differently, often governed by the Clean Water Act rather than RCRA. The regulatory focus on domestic sewage aims to ensure that its management is aligned with public health and sanitation policies, which are distinct from the waste management practices applied to solid wastes.

In contrast, solid, liquid, and semi-solid materials that are discarded indeed qualify as solid waste under RCRA, which encompasses a wide range of materials that may pose risks when not managed properly.

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