Under the Agricultural Chemicals and Groundwater Protection Act, a mixing and loading pad is required if you mix and load more than which threshold of liquid formulated product at one site annually?

• A. 500 gallons
• B. 1000 gallons
• C. 1500 gallons
• D. 2000 gallons

Answer: (A)

Mixing and loading pads exist to prevent pesticide spills from reaching soil and groundwater by providing an impermeable surface with built-in containment. The rule uses an annual-volume trigger: if you mix and load more than 500 gallons of liquid formulated product at a single site in a year, you must have a mixing and loading pad. This threshold is chosen because larger handling volumes pose a greater risk of spills and groundwater contamination, so the pad requirement applies once you exceed that level. Operations mixing 500 gallons or less per year are not required to install a dedicated pad, though general spill prevention and cleanup practices still apply.