Text For Citation: 01 Item/Group: 006 Hazard:

29 CFR 1910.1025(c)(1): Employee(s) were exposed to lead at concentrations greater than fifty micrograms per cubic meter of air averaged over an eight-hour period At 18594 Hwy KK in Boss, MO 65440 (Refinery) - On or about 27 March 2024, 8 employees of The Buick Resource Recycling Facility (BRRF) DBA Doe Run were exposed to lead levels at concentrations greater than fifty micrograms per cubic meter of air, averaged over an 8-hour period. a) Employee working in the drum shredder area was exposed to lead levels that were equivalent to 2565% of the allowable dose for an 8-hour-time weighted average (TWA). This exposure is equivalent to an 8-hour TWA of approximately 1300 micrograms per cubic meter of air (rounded to the nearest tenth of a milligram by the lab), exceeding the OSHA PEL of 50 micrograms per cubic meter of air. The sampling time was 457 minutes. Zero exposures were assumed for all unsampled time periods. b) Employee working in the blast furnace area was exposed to lead levels that were equivalent to 2237% of the allowable dose for an 8-hour-time weighted average (TWA). This exposure is equivalent to an 8-hour TWA of approximately 1100 micrograms per cubic meter of air (rounded to the nearest tenth of a milligram by the lab), exceeding the OSHA PEL of 50 micrograms per cubic meter of air. The sampling time was 360 minutes. Zero exposures were assumed for all unsampled time periods. c) Employee working in the refinery kettle area was exposed to lead levels that were equivalent to 1417% of the allowable dose for an 8-hour-time weighted average (TWA). This exposure is equivalent to an 8-hour TWA of 660 micrograms per cubic meter of air, exceeding the OSHA PEL of 50 micrograms per cubic meter of air. The sampling time was 516 minutes. Zero exposures were assumed for all unsampled time periods. d) Employee working in the oxide kettle area was exposed to lead levels that were equivalent to 437% of the allowable dose for an 8-hour-time weighted average (TWA). This exposure is equivalent to an 8-hour TWA of 220 micrograms per cubic meter of air, exceeding the OSHA PEL of 50 micrograms per cubic meter of air. The sampling time was 49 minutes. Zero exposures were assumed for all unsampled time periods. e) Employee working in the casting area was exposed to lead levels that were equivalent to 425% of the allowable dose for an 8-hour-time weighted average (TWA). This exposure is equivalent to an 8-hour TWA of 210 micrograms per cubic meter of air, exceeding the OSHA PEL of 50 micrograms per cubic meter of air. The sampling time was 446 minutes. Zero exposures were assumed for all unsampled time periods. f) Employee working around the plant as maintenance was exposed to lead levels that were equivalent to 258% of the allowable dose for an 8-hour-time weighted average (TWA). This exposure is equivalent to an 8-hour TWA of 130 micrograms per cubic meter of air, exceeding the OSHA PEL of 50 micrograms per cubic meter of air. The sampling time was 189 minutes. Zero exposures were assumed for all unsampled time periods. g) Employee working in the steel processing area was exposed to lead levels that were equivalent to 14935% of the allowable dose for an 8-hour-time weighted average (TWA). This exposure is equivalent to an 8-hour TWA of 7500 micrograms per cubic meter of air, exceeding the OSHA PEL of 50 micrograms per cubic meter of air. The sampling time was 255 minutes. Zero exposures were assumed for all unsampled time periods. h) Employee working in the reverb area was exposed to lead levels that were equivalent to 1200% of the allowable dose for an 8-hour-time weighted average (TWA). This exposure is equivalent to an 8-hour TWA of 600 micrograms per cubic meter of air, exceeding the OSHA PEL of 50 micrograms per cubic meter of air. The sampling time was 478 minutes. Zero exposures were assumed for all unsampled time periods.