Text For Citation: 01 Item/Group: 007 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: a) Production: On or about September 25, 2024 and at times prior, the employer exposed employees to respiratory hazards, in that a exposure monitoring for respirable crystalline silica was not performed when stone countertop polishers and fabricators had been exposed above the action level. Respirable Crystalline Silica sampling results of an 8-hour TWA yielded 126.3 �g/m3. The exposure was derived from a sample collected for a 456-minute sampling period. Exposure calculations included a zero increment for the time not sampled. b) Production: On or about September 25, 2024 and at times prior, the employer exposed employees to respiratory hazards, in that a exposure monitoring for respirable crystalline silica was not performed when stone countertop polishers and fabricators had been exposed above the action level. Respirable Crystalline Silica sampling results of an 8-hour TWA yielded 62.0 �g/m3. The exposure was derived from a sample collected for a 476-minute sampling period. Exposure calculations included a zero increment for the time not sampled. c) Production: On or about September 25, 2024 and at times prior, the employer exposed employees to respiratory hazards, in that a exposure monitoring for respirable crystalline silica was not performed when stone countertop polishers and fabricators had been exposed above the action level. Respirable Crystalline Silica sampling results of an 8-hour TWA yielded 278.2 �g/m3. The exposure was derived from a sample collected for a 480-minute sampling period. Exposure calculations included a zero increment for the time not sampled. d) Production: On or about September 25, 2024 and at times prior, the employer exposed employees to respiratory hazards, in that a exposure monitoring for respirable crystalline silica was not performed when stone countertop polishers and fabricators had been exposed above the action level. Respirable Crystalline Silica sampling results of an 8-hour TWA yielded 132.2 �g/m3. The exposure was derived from a sample collected for a 464-minute sampling period. Exposure calculations included a zero increment for the time not sampled. e) Production: On or about September 25, 2024 and at times prior, the employer exposed employees to respiratory hazards, in that a exposure monitoring for respirable crystalline silica was not performed when stone countertop polishers and fabricators had been exposed above the action level. Respirable Crystalline Silica sampling results of an 8-hour TWA yielded 518.1 �g/m3. The exposure was derived from samples collected for a 416-minute sampling period. Exposure calculations included a zero increment for the time not sampled.