Text For Citation: 01 Item/Group: 003A Hazard:

29 CFR 1926.62(c)(1): The employer did not ensure that no employees were exposed to lead at concentrations greater than fifty micrograms per cubic meter of air (50 ug/m3) averaged over an 8-hour period: Decommissioned Millstone Power Station Unit No. 1 Roof: On or about October 24, 2023, and sometime thereafter, employees were presumed to be exposed to lead during high exposure plasma torch cutting tasks where the degree of overexposures to lead were at concentrations greater than fifty micrograms per cubic meter of air (50 ug/m3) over an averaged 8-hour period. Employees were presumed to be exposed to lead at levels in the absence of monitoring required to be performed in accordance with 29 CFR 1926.62(d) verifying employees were not exposed to levels that exceeded the 2,500 �g/m3 lead concentration levels for the (d)(2)(iv) "trigger tasks" performed. This occurred when rooftop building structures, among other structures, had a lead-painted boiler system unit that was presumed to expose employees to elevated aerosolized contaminant lead levels during plasma torch cutting and power cutting operations that induced heavy smoke formation in the Auxiliary Boiler Room where the boiler piping surface tested positive for lead. Additional lead-coated surfaces such as air handling recirculating units (HVHs); exhaust filter fan units (HVEs); and HVAC ductwork were removed non-intact from 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