Text For Citation: 01 Item/Group: 006A Hazard:

29 CFR 1910.1053(c):The employer did not ensure that no employee was exposed to an airborne concentration of respirable crystalline silica in excess of 50 �g/m3, calculated as an 8-hour TWA: a) On January 27, 2025, an employee in the production area conducting marble, engineered stone and granite countertop polishing and grinding operations was exposed to airborne concentrations of respirable crystalline silica (quartz), a carcinogen, at 186 �g/m3, approximately 3.75 times over the OSHA Permissible Exposure Limit (PEL) of 50 �g/m3 as an 8-hour time-weighted average. The PEL was established to prevent silicosis and lung cancer. The exposure level was derived from a sample taken over a 453 minute period during the first shift starting on January 27, 2025. Zero exposure was assumed for the unsampled period of 27 minutes. b) On January 27, 2025, an employee in the production area conducting marble, engineered stone and granite countertop cutting operations utilizing a bridge saw was exposed to airborne concentrations of respirable crystalline silica (quartz), a carcinogen, at 95.1 �g/m3, approximately 1.9 times over the OSHA Permissible Exposure Limit (PEL) of 50 �g/m3 as an 8-hour time-weighted average. The PEL was established to prevent silicosis and lung cancer. The exposure level was derived from a sample taken over a 439 minute period during the first shift starting on January 27, 2025. Zero exposure was assumed for the unsampled period of 41 minutes. In accordance with 29 CFR 1903.19 (d), abatement certification is required for this violation (using the CERTIFICATION OF CORRECTIVE ACTION WORKSHEET), and in addition, documentation demonstration that abatement is complete must be included with your certification. This documentation may include, but is not limited to, evidence of purchase or repair of equipment, photographic or video evidence of abatement or other written records.