Text For Citation: 01 Item/Group: 003B Hazard:

29 CFR 1910.134(d)(3)(i)(B)(1): The employer did not select a respirator for employee use that maintained the employee's exposure to the hazardous substance, when measured outside the respirator, at or below the maximum use concentration: a. On or about January 16, 2019, an employee cutting, shaping, and finishing quartz, marble, and other exotic stone work for countertops in the fabrication area was exposed to Respirable Crystalline Silica at a Time Weighted Average (TWA) of 1096.9 micrograms per cubic meter (µg/m3), 22 times the permissible exposure limit of 50.0 µg/m3. The sampling was performed for 415 minutes on January 16, 2019. The employee exposure was 2 times the maximum use concentration of the respirator provided to the employee.