According to the EPA, which of the following is NOT considered solid waste?

The correct choice indicates that none of the items listed are considered solid waste according to the EPA, highlighting the specific definitions and classifications used by the agency.

When discussing solid waste, it’s important to understand that the EPA defines it as any discarded material that is not excluded from regulation under the Resource Conservation and Recovery Act (RCRA). Solid waste typically includes garbage, refuse, and sludges from wastewater treatment plants.

In this context, manures and crop residues are often not included as solid waste because they are largely organic materials that can be beneficially reused in agricultural practices, such as soil amendment, which makes them distinct from typical solid waste.

Mining or milling wastes can also be categorized under different regulations related to mineral and resource extraction rather than being classified strictly as solid waste. There are specific regulations governing these materials that address their disposal and management.

Solid material in domestic sewage is classified differently as it falls under the category of wastewater rather than solid waste. The materials in sewage are managed under a different set of environmental regulations (i.e., the Clean Water Act) rather than the solid waste regulations.

Thus, the distinction arises from the federal regulatory framework, which considers the purpose and potential reuse of the materials rather than simply their physical state as