Which of the following is a control measure for on-site hauling?

• A. Limit speed to 20 mph
• B. Cover with a tarp
• C. Use of water on the load
• D. Both cover with a tarp and apply water

Answer: (D)

The selection of both covering with a tarp and applying water as control measures for on-site hauling is supported by their effectiveness in minimizing dust emissions. Covering loads with a tarp helps to prevent dust particles from becoming airborne during transport, which is critical in dusty operations. It acts as a physical barrier that keeps materials contained.

Additionally, applying water to loads can help bind dust particles together, reducing the likelihood of them being disturbed and released into the air during movement. This method is especially useful for materials prone to generating dust, as moisture helps to maintain the integrity and weight of the load.

The combination of these two approaches offers a comprehensive strategy for controlling dust during hauling activities, making it a crucial practice under Rule 310 for managing dust-generating operations. By implementing both measures, operators can enhance their compliance with air quality regulations and contribute to a healthier environment both on-site and in surrounding areas.