What must be done with rinsate after cleaning pesticide application equipment?

• A. Dispose of it in the field as needed
• B. Collect and dispose per label
• C. Use it to water the plants
• D. Keep it in a holding tank indefinitely

Answer: (B)

Rinsate is leftover water that washed through the spray equipment and still contains pesticide residues, so it must be treated as pesticide waste. The only safe and compliant way to handle it is to collect it in a labeled container and dispose of it according to the product label. That label will tell you whether the rinsate can be used on a labeled site, must be taken to a permitted disposal facility, or must be handled in some other approved way. It should never be dumped in the field, onto crops, or released to drains, and it isn’t something to keep indefinitely in a holding tank without following the label’s waste-disposal directions. Following the label ensures you meet both safety and regulatory requirements.