Health and Safety. Dust Control.
Trenching can be some of the most hazardous work on a construction site according to leading authority OSHA.
It provides a range of safety hazards including cave ins, falls and falling loads, hazardous atmospheres, mobile equipment and hitting utility lines. People working in excavation and trenching operations may also be exposed to Respirable Crystalline Silica (RCS) due to work activities such as sifting sand; and crushing, grinding, and moving rocks that may disturb silica particles.
All construction industry workers must obtain adequate knowledge about working with silica and the dangers of silica exposure. Accordingly, the Occupational Safety and Health Administration (OSHA) has developed and implemented the RCS standard for the construction industry (29 CFR 1926.1153) to support employers in their endeavors to protect employees from silica hazards and limit worker exposures to respirable crystalline silica by adopting the appropriate methods and safeguards.
OSHA’s construction industry RCS standard provides flexibility to employers on the different protection methods, to reduce silica dust and the limit the Permissible Exposure Limit (PEL) in the workplace by using the Hierarchy of Controls.