Under Rule 310, what material is defined as trackout?

• A. Material left on pavement
• B. Loose vegetation
• C. Soil deposits
• D. Bulk material without staining

Answer: (D)

Trackout refers specifically to the material that is transported off-site by vehicle tires, typically arising from construction or excavation activities. Under Rule 310, trackout is classified as bulk material that does not exhibit staining, meaning it is clean soil or aggregate that has been picked up by vehicles and is left on roadways or pavements.

The correct identification of trackout is essential for dust control practices, as it directly relates to dust management obligations. By keeping trackout under control and preventing it from being left on public roads, operators can significantly reduce airborne dust and maintain compliance with air quality regulations.

This understanding helps differentiate trackout from other materials, such as loose vegetation or soil deposits, which do not fit the definition provided in the rule. Trackout is specifically linked to the activities on construction sites and their potential impact on surrounding areas, thus necessitating proper management and mitigation measures.