Text For Citation: 02 Item/Group: 005A Hazard:

29 CFR 1910.1052(j)(1)(i): The employer did not make medical surveillance available for employees who were or potentially were exposed to methylene chloride at or above the action level on 30 or more days per year, or above the 8-hour time weighted average permissible exposure limit or the short term exposure limit on 10 or more days per year: Prep Lab: On or about February 28, 2022, employees who may have and were exposed to methylene chloride (MC) above the action level on 30 or more days per year, or above the 8-hour time weighted average (TWA) permissible exposure limit (PEL), did not have medical surveillance made available to them by the employer. These exposures occurred while laboratory technicians performed analytical procedures using MC to extract organic compounds when analyzing environmental samples--including wastewater, soil, and sludge samples--and also happened during instances when employees were required to rinse glassware with the solvent to clean the items after the oven broke. This was all performed in areas that were either not ventilated, such as the sink and Buchi machines, or in poorly ventilated chemical fume hoods.