Text For Citation: 01 Item/Group: 001B 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): At the VMM #6 machine of Plant 3, a VMM operator was exposed to carbon monoxide at a level of 61 ppm as an 8-hour TWA on March 31, 2016, approximately 1.2 times the PEL of 50 ppm. This exposure was determined by air sampling conducted over 487 minutes. Applicable engineering or administrative controls may include, but are not limited to the following: 1) Conduct thorough air studies in the Plant 3 VMM areas to verify carbon monoxide sources, existing controls, employee proximity to sources and job tasks which expose employees in order to determine the most effective engineering and administrative controls. 2) Adjust fresh air supply system at slagging/ladle cleaning positions in order to bring clean fresh air as close to the employees' breathing zones as possible to reduce re-entrainment of carbon monoxide and other byproducts of the molten metal/pouring process. 3) Supplement engineering controls with administrative controls by reducing the amount of time employees are exposed to carbon monoxide while conducting job tasks with the highest exposure levels.