How should contaminated rinse water be disposed of?

• A. Dilute and reapply to treated area, provided the maximum rate is not exceeded
• B. Pour rinse water into storm drains
• C. Dump rinse water into the trash
• D. Mix rinse water with drinking water

Answer: (A)

Rinse water that has pesticides in it must be kept out of the environment and used according to the label. Diluting the rinse water and reapplying it to the treated area, within the maximum labeled rate, is the preferred approach because it makes use of the remaining pesticide where it’s needed and prevents waste or environmental harm.

Pouring rinse water into storm drains would carry pesticide residues directly to waterways, harming aquatic life and violating regulations. Dumping rinse water in the trash risks leaks or exposure during handling and disposal. Mixing rinse water with drinking water creates a serious safety hazard and is illegal. By reapplying to the same treated area at or below the labeled application rate, you use the product as intended and minimize environmental impact.