Text For Citation: 01 Item/Group: 007C Hazard:

29 CFR 1910.1000(e): Feasible administrative or engineering controls were not determined and implemented to achieve compliance with the limits prescribed in 29 CFR 1910.1000(a) through (d): On or about June 22, 2016, employees were batching dry bulk materials and were exposed to Particulates Not Otherwise Regulated (PNOR) in excess of the permissible exposure limit and the feasible administrative and/or engineering controls were not implemented. General methods of control applicable in these circumstances include, but are not limited to, the following: a) Limit worker access to the areas where exposure may exceed the PEL; b) Increase the ventilation in the Blending Area; c) Enclose and ventilate the horizontal conveyor nearest the mortar mixer next to the Blending Area; d) Test and balance the ventilation system to ensure optimal performance for each task; e) Include a maintenance and inspection program for the ventilation system to ensure the ductwork is properly sealed and secured to the equipment it is designed to exhaust and that the filtration media is performing within the manufactured tolerances; and f) Eliminate broom sweeping as a means of housekeeping and use a HEPA vacuum or wet methods to capture settled particles.