Which of the following is true about both triple-rinsed and pressure-rinsed containers?

• A. They are hazardous waste.
• B. They are non-hazardous waste.
• C. They must be disposed of by burial.
• D. They require solvent recovery.

Answer: (B)

The key idea is that thoroughly cleaning pesticide containers makes them “empty,” and regulators treat properly rinsed containers as non-hazardous waste. When a container is triple rinsed or pressure rinsed, most of the chemical residue is removed, so the container no longer qualifies as hazardous waste. That’s why the best choice is that these containers are non-hazardous waste after proper rinsing. Burial isn’t required, and there’s no general mandate for solvent recovery for the container disposal itself. (Note: the rinse water may have its own disposal requirements, depending on the product used.)