Text For Citation: 01 Item/Group: 005C Hazard:

29 CFR 1910.1053(d)(1):The employer did not assess the exposure of each employee who was or may reasonably be expected to be exposed to respirable crystalline silica at or above the action level in accordance with either the performance option in paragraph (d)(2) or the scheduled monitoring option in paragraph (d)(3) of this section: The employer did not perform an exposure assessment to determine if employees would be exposed to respirable crystalline silica at or above the action level. Employees had the following results. a)Production area :A fabricator that grinded and polished stone countertops containing silica was exposed to an airborne concentration of silica at an 8 hour time-weighted average of 149 micrograms per cubic meter (ug/m3), which was 2.98 times the permissible exposure limit (PEL) of 50 ug/m3. The sampling was conducted for 476 minutes during one shift on 11/20/24. Zero exposure was assumed for the unsampled period of time. b)Bridge Saw production area : A fabricator that operated a bridge saw to cut stone countertops containing silica was exposed to an airborne concentration of silica at an 8 hour time-weighted average of 64 micrograms per cubic meter (ug/m3), which was 1.27 times the permissible exposure limit (PEL) of 50 ug/m3. The sampling was conducted for 477 minutes during one shift on 11/20/24. Zero exposure was assumed for the unsampled period of time.