Text For Citation: 01 Item/Group: 004B Hazard:

29 CFR 1910.1053(e)(1): The employer did not establish a regulated area wherever an employee's exposure to airborne concentrations of respirable crystalline silica was, or could have been reasonably expected to be, in excess of the PEL: a) 407 West Main Street Norristown, PA 19401, fabrication area: On or about August 21, 2025, an employee performing polishing on stone and engineered stone was measured to be exposed to an 8 hour time weighted average of 59 micrograms per cubic meter of respirable crystalline silica, above the permissible exposure limit (PEL) of 50 micrograms per cubic meter. This exposure was measured over a period of 426 minutes. Zero exposure was assumed for the 54 minutes that were not sampled. The employer did not establish a regulated area in accordance with this section in an area where airborne concentration of respirable crystalline silica was in excess of the PEL. Abatement certification and documentation required within 10 days after abatement date. The certification shall include a statement that abatement is complete, the date and method of abatement, and state that employees and their representatives were informed of this abatement. Abatement documentation shall include documents demonstrating that abatement is complete, such as evidence of the purchase or repair of equipment, photograph or video evidence of abatement or other written records.