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

29 CFR 1910.1053(d)(3)(iv): Where the most recent exposure monitoring indicated that employee exposures were above the PEL, the employer did not repeat such monitoring within three months of the most recent monitoring: a) Cell 5 Area; On or about August 10, 2023, and at times prior, the employer exposed an employee to an 8-hour time-weighted average concentration of respirable crystalline silica at 0.20 milligrams per cubic meter of air (mg/m), 4 times the permissible exposure limit (PEL) of 0.05 mg/m^3. The sampling was performed during one shift on March 1, 2023 for 480 minutes. The exposure monitoring was not repeated. b) Cell 25 Area; On or about August 10, 2023, and at times prior, the employer exposed an employee to an 8-hour time-weighted average concentration of respirable crystalline silica at 0.67 milligrams per cubic meter of air (mg/m), 13.4 times the permissible exposure limit (PEL) of 0.05 mg/m^3. The sampling was performed during one shift on March 1, 2023 for 480 minutes. The next exposure monitoring was repeated July 11, 2023 for 480 minutes. c) Blast 2 Area; On or about August 10, 2023, and at times prior, the employer exposed an employee to an 8-hour time-weighted average concentration of respirable crystalline silica at 0.52 milligrams per cubic meter of air (mg/m), 10.4 times the permissible exposure limit (PEL) of 0.05 mg/m^3. The sampling was performed during one shift on March 1, 2023 for 480 minutes. The next exposure monitoring was repeated July 11, 2023 for 480 minutes. d) Forklift 1 Operators Area; On or about August 10, 2023, and at times prior, the employer exposed an employee to an 8-hour time-weighted average concentration of respirable crystalline silica at 0.061 milligrams per cubic meter of air (mg/m), 1.2 times the permissible exposure limit (PEL) of 0.05 mg/m^3. The sampling was performed during one shift on March 1, 2023 for 480 minutes. The next exposure monitoring was repeated July 12, 2023 for 480 minutes. e) F-Degate Area; On or about August 10, 2023, and at times prior, the employer exposed an employee to an 8-hour time-weighted average concentration of respirable crystalline silica at 0.21 milligrams per cubic meter of air (mg/m), 4.2 times the permissible exposure limit (PEL) of 0.05 mg/m^3. The sampling was performed during one shift on March 2, 2023 for 480 minutes. The exposure monitoring was not repeated. f) E-Degate Area; On or about August 10, 2023, and at times prior, the employer exposed an employee to an 8-hour time-weighted average concentration of respirable crystalline silica at 0.78 milligrams per cubic meter of air (mg/m), 15.6 times the permissible exposure limit (PEL) of 0.05 mg/m^3. The sampling was performed during one shift on March 2, 2023 for 480 minutes. The next exposure monitoring was repeated July 12, 2023 for 480 minutes. g) A-Degate Area; On or about August 10, 2023, and at times prior, the employer exposed an employee to an 8-hour time-weighted average concentration of respirable crystalline silica at 3.7 milligrams per cubic meter of air (mg/m), 74 times the permissible exposure limit (PEL) of 0.05 mg/m^3. The sampling was performed during one shift on March 2, 2023 for 480 minutes. The exposure monitoring was not repeated. h) FL Degate Area; On or about August 10, 2023, and at times prior, the employer exposed an employee to an 8-hour time-weighted average concentration of respirable crystalline silica at 1.30 milligrams per cubic meter of air (mg/m), 26 times the permissible exposure limit (PEL) of 0.05 mg/m^3. The sampling was performed during one shift on March 2, 2023 for 480 minutes. The next exposure monitoring was repeated July 12, 2023 for 480 minutes. i) Section 3 Area; On or about August 10, 2023, and at times prior, the employer exposed an employee to an 8-hour time-weighted average concentration of respirable crystalline silica at 0.16 milligrams per cubic meter of air (mg/m), 3.2 times the permissible exposure limit (PEL) of 0.05 mg/m^3. The sampling was performed during one shift on March 3, 2023 for 480 minutes. The next exposure monitoring was repeated July 13, 2023 for 480 minutes. j) Refractory Area; On or about August 10, 2023, and at times prior, the employer exposed an employee to an 8-hour time-weighted average concentration of respirable crystalline silica at 0.21 milligrams per cubic meter of air (mg/m), 4.2 times the permissible exposure limit (PEL) of 0.05 mg/m^3. The sampling was performed during one shift on March 3, 2023 for 480 minutes. The next exposure monitoring was repeated July 13, 2023 for 480 minutes. k) Scales Area; On or about August 10, 2023, and at times prior, the employer exposed an employee to an 8-hour time-weighted average concentration of respirable crystalline silica at 0.13 milligrams per cubic meter of air (mg/m), 2.6 times the permissible exposure limit (PEL) of 0.05 mg/m^3. The sampling was performed during one shift on March 3, 2023 for 480 minutes. The next exposure monitoring was repeated July 12, 2023 for 480 minutes.