Which of the following is part of the mixing protocol for aquatic pesticides?

• A. Use dirty equipment.
• B. Add water to concentrate.
• C. Keep records after mixing.
• D. Do not wear PPE.

Answer: (C)

Keeping records after mixing is part of the safe, traceable mixing process. When you document what was mixed, in what amounts, with which equipment, at what time, and by whom, you create a verifiable trail. This helps ensure the application matches the label, supports accountability, and provides essential data if anything needs to be checked later—such as spill events, re-entry intervals, or adjustments for future treatments.

Other options would compromise safety or proper procedure. Using dirty equipment can contaminate the mix; the typical mixing order follows label instructions (often adding water first and then the concentrate), and not wearing PPE is unsafe and not part of proper protocol.