Text For Citation: 01 Item/Group: 002B Hazard:

29 CFR 1926.1153(d)(2)(iii)(A): The employer did not perform initial monitoring to assess the 8-hour TWA exposure for each employee on the basis of one or more personal breathing zone air samples that reflect the exposures of employees on each shift, for each job classification, in each work area: At a construction site located at 201 W Capitol Ave, Jefferson City MO: Employees were exposed to respiratory hazards from the dust being generated from the dry jack hammering, a tuck-pointing methods. This was demonstrated when employees were engaged in dry jack hammering and the removal of mortar (tuck-pointing) of the exterior of the limestone building at this location. (a) On or about February 4, 2019, an employee working on the exterior of the building was exposed to a 8 hour time weighted average (TWA) level of 730 mcg/m, which is 14.6 times the OSHA permissible exposure level (PEL) of 50 mcg/m. (b) On or about February 4, 2019, an employee working on the exterior of the building was exposed to a 8 hour time weighted average (TWA) level of 430 mcg/m, which is 8.6 times the OSHA permissible exposure level (PEL) of 50 mcg/m. (c) On or about February 4, 2019, an employee working on the exterior of the building was exposed to a 8 hour time weighted average (TWA) level of 360 mcg/m, which is 7.2 times the OSHA permissible exposure level (PEL) of 50 mcg/m. (d) On or about February 4, 2019, an employee working on the exterior of the building was exposed to a 8 hour time weighted average (TWA) level of 150 mcg/m, which is 3.0 times the OSHA permissible exposure level (PEL) of 50 mcg/m.