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

29 CFR 1926.62(f)(1)(iv): Respirators were not used during periods when respirators were required to provide interim protection for employees while they performed the operations specified in 29 CFR 1926.62(d)(2)(iv): Decommissioned Millstone Power Station Unit No. 1 Roof: On or about October 24, 2023, and sometime thereafter, the employer did not provide employees with respiratory protection in accordance with the appropriate assigned protection factor (APF) for the presumed exposure above 2,500 ?g/m3, which required a protection factor of at least 50 for the 1926.62(d)(2)(iv) tasks performed. The employer offered half face dust mask respirators with an APF of 10 that employees could voluntarily use while engaging in torch cutting, power cutting, and other manual demolition "non-intact" methods. Given the APF of the dust mask, and the presumed exposure concentrations, the maximum concentration of lead dust that employees were expected to be protected from with the respirator provided was up to 500 ?g/m3 (MUC= APF 10 x PEL 50 ug/m3 = 500 ug/m3). The remaining concentration exposes employees to 2,000 ?g/m3 of lead dust, more than three times the 50 ug/m3 PEL for an 8-hr time-weighted average period during torch cutting operations on lead-painted surfaces and steel structures within the following rooftop Millstone Power Station Unit 1 locations: a) Maintenance Shop Roof b) Turbine Building Roof c) Reactor Building Roof d) Yard - Radwaste & Radwaste Storage Roof