When must a facility have an impervious mixing and loading pad?

When must a facility have an impervious mixing and loading pad?

• A. Loading application equipment having more than 5 gallons
• B. Located less than 100 feet from a water body
• C. Mixing restricted use pesticides
• D. Only during winter months

Answer: (B)

The key idea is protecting water quality. Pesticide mixing, loading, and related wash waters can create spills that runoff into nearby water bodies. Because being close to a water body increases the risk of contamination, regulations require an impervious mixing and loading pad when a facility is within 100 feet of a water body. This pad provides a durable, water-tight surface with containment to capture spills and wash water, so they can be collected and treated or disposed of properly rather than entering surface or groundwater. The other options don’t establish that containment trigger: the amount of product being loaded, whether pesticides are restricted-use, or the season doesn’t by itself mandate the pad. The proximity to a water body is the specific factor that dictates the requirement.

The key idea is protecting water quality. Pesticide mixing, loading, and related wash waters can create spills that runoff into nearby water bodies. Because being close to a water body increases the risk of contamination, regulations require an impervious mixing and loading pad when a facility is within 100 feet of a water body. This pad provides a durable, water-tight surface with containment to capture spills and wash water, so they can be collected and treated or disposed of properly rather than entering surface or groundwater.

The other options don’t establish that containment trigger: the amount of product being loaded, whether pesticides are restricted-use, or the season doesn’t by itself mandate the pad. The proximity to a water body is the specific factor that dictates the requirement.