Text For Citation: 02 Item/Group: 001A Hazard:

29 CFR 1910.1026(d)(1): The employer with a workplace or work operation covered by this standard did not determine the 8-hour time-weighted average exposure for each employee exposed to chromium (VI): a) Building 2: On or about May 3, 2021, the employer did not make a determination of employee exposure to hexavalent chromium (Cr(VI)) during electroplating, mixing and preparation, painting, and paint removal operations on small aircraft parts. Employees in the Building 2 Paint Shop performed tasks that included Cr(VI) mixing, preparation, and sanding with a Duracoat putty containing 10-20% Cr(VI) trioxide that was mixed with an Evercoat Polyester Glazing Putty. Also, a 515X410 Base Component containing 20% strontium chromate and an M&D Activator Component was mixed then spray painted onto small parts. Additional spray painting in building 2 was done with a 3M Structural Adhesive Primer EC-3917 that contained a 1-5% strontium chromate concentration. Employees also worked in an Etch Line room (connected to the Paint Shop room), which included a process line of one dip tank containing 100% strontium chromate and another dip tank containing 50-60% Cr(VI) oxide Alodine solution. An exposure assessment performed by OSHA during the inspection resulted in an exceedance of the 5ug/m3 PEL in building 2 with an 8hr TWA concentration of 16�g/m3. b) Building 11: On or about April 28, 2021, plating operations performed in building 11 also included the use of a Duracoat product containing 10-20% chromic acid while cadmium plating and performing electroplating operations in a small dip tank containing a 50-60% Cr(VI) oxide Alodine solution. Cr(VI) samples retrieved from building 11 resulted in exposure levels below the PEL with an 8hr TWA concentration of 0.07 �g/m3.