How is the buffer distance near water calculated when labeled distances are given?

• A. Double the distance
• B. Follow the exact distance specified on the label and measure from the edge of the treated area to the water body; do not cross into that zone
• C. Use the distance from the center of the spray
• D. Distances near water are not required

Answer: (B)

Buffer distances near water come from the product label and are there to protect water quality by preventing drift and runoff. When a distance is specified, you measure from the edge of the treated area to the water body and you must not spray into that zone. This means the spray boundary stays outside the water’s edge, exactly as labeled. If the water is closer than that distance, you’d need to change plans (use a different product or method or postpone application) rather than trying to adjust by doubling the distance or using a different reference point like the center of spray. Distances near water are a mandatory part of the label to ensure environmental protection.