Aggregate plants produce sand and gravel and crushed stone. These plants can also be considered major air pollution sources. Upon completion of this one-day course, the participant will better understand the process flow of sand and gravel and crushed stone operations and the legal requirements associated with aggregate plants. A field visit is included to provide hands-on inspection techniques. In order to participate in the field visit, all students are required to bring appropriate safety equipment (hard hat, safety shoes, hearing and eye protection). SITE VISIT RECOMMENDED.