Never get rid of rinsate or unused pesticide material:

Disposing of rinsate (rinse water from cleaning equipment) or unused pesticide material improperly can lead to environmental contamination. NJDEP regulations (N.J.A.C. 7:30-9.12) and theGeneral Pest Management: Guide for Commercial Applicators - Category 7A(Chapter 3: Pesticide Safety) prohibit disposal on the soil (which can contaminate groundwater) or into a drain or sewer (which can pollute water systems). Both methods are illegal and environmentally harmful, making Option C correct. Rinsate should be applied to a labeled site or disposed of at a designated facility.