Text For Citation: 02 Item/Group: 002A Hazard:

29 CFR 1910.1052(e)(1): The employer shall establish a regulated area wherever an employee's exposure to airborne concentrations of MC exceeds or can reasonably be expected to exceed either the 8-hour TWA PEL or the STEL. On or about March 7, 2024, at an establishment located at 724 South Industrial Drive in Waupaca, Wisconsin; the employer did not establish a regulated area where an employee was stripping wood furniture using Benco B7 industrial paint remover and was exposed to levels of Methylene chloride (MC) that were above both the Permissible Exposure Limit (PEL) of 25 ppm, and the Short-Term Exposure Limit (STEL) of 125 ppm. The employee was exposed an 8-hour time-weighted average (TWA) of 138 ppm of Methylene chloride (MC), over a 384-minute sampling period with zero exposure assumed for the unsampled period of 96 minutes. The employee was exposed to a short-term exposure of MC, over a sampling period of 15 minutes.