Text For Citation: 01 Item/Group: 005A Hazard:

29 CFR 1910.1053(g)(1)(iv): Respiratory protection was not provided during periods when the employee was in a regulated area: Mansfield Plumbing Products, LLC. located at 150 East First Street in Perrysville, Ohio: On or about November 3, 2022 the employer did not ensure employees working in regulated areas, where exposures based on 8-hour time weights averages exceeded the permissible exposure limit for respirable crystalline silica dust, were required to wear respiratory protection. Employees loading the kilns were exposed to hazards associated with exposure to crystalline silica dust above the permissible exposure limit such as, but not limited to, cough, fatigue, chest pain, and silicosis. Instance A On or about November 3, 2022 an employee loading the kiln, without respiratory protection, was exposed to an 8-hour time weighted average (TWA) of 129.5 ?g/m3 for respirable crystalline silica dust, approximately 2.5 times the permissible exposure limit (PEL) of 50 ?g/m3. The exposure level was derived from a sample collected over 463-minute sampling period, with zero exposure assumed for the unsampled period of seventeen minutes. Instance B On or about November 3, 2022 an employee loading the kiln, without respiratory protection, was exposed to an 8-hour time weighted average (TWA) of 148.17 ?g/m3 for respirable crystalline silica dust, approximately three times the permissible exposure limit (PEL) of 50 ?g/m3. The exposure level was derived from a sample collected over 453-minute sampling period, with zero exposure assumed for the unsampled period of twenty-seven minutes.