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

29 CFR 1910.1000(e): Feasible administrative or engineering controls were not determined and implemented to achieve compliance with the limits prescribed in 29 CFR 1910.1000(a) through (d): a) Cathode Powder Mixing Room/ Electrode Department- On or about 6/30/2023, and at times prior, the employer exposed employees to respiratory hazards associated with Nickel in that, the employer failed to ensure that feasible administrative or engineering controls were provided and implemented so that employees dumping bags of powder were not exposed to Nickel in excess of the permissible exposure limit (PEL) at 1 mg/m3 which was calculated as an 8-hour time weighted average (TWA) of 24.46 mg/m3, during 448 minute sampling performed on 6/30/2023. Zero exposure was assumed for the 32 minutes not sampled. b) Cathode Powder Mixing Room/ Electrode Department- On or about 6/30/2023, and at times prior, the employer exposed employees to respiratory hazards associated with Nickel in that, the employer failed to ensure that feasible administrative or engineering controls were provided and implemented to employees involved with cleaning and loading bags of powder were not exposed to Nickel in excess of the permissible exposure limit (PEL) at 1 mg/m3 which was calculated as an 8-hour time weighted average (TWA) of 3.73 mg/m3, during 404 minute sampling performed on 6/30/2023. Zero exposure was assumed for the 76 minutes not sampled. c) Cathode Powder Mixing Room/ Electrode Department- On or about 6/30/2023, and at times prior, the employer exposed employees to respiratory hazards associated with Nickel in that, the employer failed to ensure that feasible administrative or engineering controls were provided and implemented to employees dumping bags of powder were not exposed to Nickel in excess of the permissible exposure limit (PEL) at 1 mg/m3 which was calculated as an 8-hour time weighted average (TWA) of 11.55 mg/m3, during 446 minute sampling performed on 6/30/2023. Zero exposure was assumed for the 34 minutes not sampled. d) Cathode Powder Mixing Room/ Electrode Department- On or about 6/30/2023, and at times prior, the employer exposed employees to respiratory hazards associated with Nickel in that, the employer failed to ensure that feasible administrative or engineering controls were provided and implemented to employees involved with cleaning and loading bags of powder were not exposed to Nickel in excess of the permissible exposure limit (PEL) at 1 mg/m3 which was calculated as an 8-hour time weighted average (TWA) of 32.01 mg/m3, during 439 minute sampling performed on 6/30/2023. Zero exposure was assumed for the 41 minutes not sampled. e) Cathode Powder Mixing Room/ Electrode Department- On or about 6/30/2023, and at times prior, the employer exposed employees to respiratory hazards associated with Cobalt in that, the employer failed to ensure that feasible administrative or engineering controls were provided and implemented so that employees dumping bags of powder were not exposed to Cobalt in excess of the permissible exposure limit (PEL) at 0.1 mg/m3 which was calculated as an 8-hour time weighted average (TWA) of 4.02 mg/m3, during 448 minute sampling performed on 6/30/2023. Zero exposure was assumed for the 32 minutes not sampled. f) Cathode Powder Mixing Room/ Electrode Department- On or about 6/30/2023, and at times prior, the employer exposed employees to respiratory hazards associated with Cobalt in that, the employer failed to ensure that feasible administrative or engineering controls were provided and implemented to employees involved with cleaning and loading bags of powder were not exposed to Cobalt in excess of the permissible exposure limit (PEL) at 0.1 mg/m3 which was calculated as an 8-hour time weighted average (TWA) of 0.63 mg/m3, during 404 minute sampling performed on 6/30/2023. Zero exposure was assumed for the 76 minutes not sampled. g) Cathode Powder Mixing Room/ Electrode Department- On or about 6/30/2023, and at times prior, the employer exposed employees to respiratory hazards associated with Cobalt in that, the employer failed to ensure that feasible administrative or engineering controls were provided and implemented to employees working with bags of powder were not exposed to Cobalt in excess of the permissible exposure limit (PEL) at 0.1 mg/m3 which was calculated as an 8-hour time weighted average (TWA) of 1.90 mg/m3, during 446 minute sampling performed on 6/30/2023. Zero exposure was assumed for the 34 minutes not sampled. h) Cathode Powder Mixing Room/ Electrode Department- On or about 6/30/2023, and at times prior, the employer exposed employees to respiratory hazards associated with Cobalt in that, the employer failed to ensure that feasible administrative or engineering controls were provided and implemented to employees working with bags of powder were not exposed to Cobalt in excess of the permissible exposure limit (PEL) at 0.1 mg/m3 which was calculated as an 8-hour time weighted average (TWA) of 5.21 mg/m3, during 439 minute sampling performed on 6/30/2023. Zero exposure was assumed for the 41 minutes not sampled. i) Cathode Powder Mixing Room/ Electrode Department- On or about 6/30/2023, and at times prior, the employer exposed employees to respiratory hazards associated with Total Dust in that, the employer failed to ensure that feasible administrative or engineering controls were provided and implemented so that employees dumping bags of powder were not exposed to Particulates Not Otherwise Regulated (PNOR) in excess of the permissible exposure limit (PEL) at 15 mg/m3 which was calculated as an 8-hour time weighted average (TWA) of 69.07 mg/m3, during 448 minute sampling performed on 6/30/2023. Zero exposure was assumed for the 32 minutes not sampled. j) Cathode Powder Mixing Room/ Electrode Department- On or about 6/30/2023, and at times prior, the employer exposed employees to respiratory hazards associated with Total Dust in that, the employer failed to ensure that feasible administrative or engineering controls were provided and implemented so that employees dumping bags of powder were not exposed to Particulates Not Otherwise Regulated (PNOR) in excess of the permissible exposure limit (PEL) at 15 mg/m3 which was calculated as an 8-hour time weighted average (TWA) of 21.37 mg/m3, during 446 minute sampling performed on 6/30/2023. Zero exposure was assumed for the 34 minutes not sampled. k) Cathode Powder Mixing Room/ Electrode Department- On or about 6/30/2023, and at times prior, the employer exposed employees to respiratory hazards associated with Total Dust in that, the employer failed to ensure that feasible administrative or engineering controls were provided and implemented so that employees involved with cleaning and loading bags of powder were not exposed to Particulates Not Otherwise Regulated (PNOR) in excess of the permissible exposure limit (PEL) at 15 mg/m3 which was calculated as an 8-hour time weighted average (TWA) of 40.24 mg/m3, during 439 minute sampling performed on 6/30/2023. Zero exposure was assumed for the 41 minutes not sampled.