OSHA Inspection: NORTH TEXAS CONTRACTING, INC.

Issued

2026-04-30 00:00:00

Abate by

2026-05-27 00:00:00

Penalty

Initial $16550.00 · Current $16550.00

Hazardous substances C730

General-duty citation text

29 CFR  1926.55(a)(2): An employee(s) was exposed to substance(s) with a permissible exposure limit not preceded by (C) at concentrations above that specified in Table 1 of 1926.55 for that substance(s):  (a) On or about November 1, 2025, in a school locker room under renovation, a concrete finisher was exposed to carbon monoxide at an 8-hour time-weighted average concentration of 152.2 ppm, which is 3.04 times the permissible exposure limit of 50 ppm.  Exposure was determined by percent carboxyhemoglobin in blood.   (b) On or about November 1, 2025, in a school locker room under renovation, a concrete finisher was exposed to carbon monoxide at an 8-hour time-weighted average concentration of 149.3 ppm, which is 2.99 times the permissible exposure limit of 50 ppm.  Exposure was determined by percent carboxyhemoglobin in blood.   (c) On or about November 1, 2025, in a school locker room under renovation, a concrete finisher was exposed to carbon monoxide at an 8-hour time-weighted average concentration of 170.5 ppm, which is 3.41 times the permissible exposure limit of 50 ppm.  Exposure was determined by percent carboxyhemoglobin in blood.   (d) On or about November 1, 2025, in a school locker room under renovation, a concrete finisher was exposed to carbon monoxide at an 8-hour time-weighted average concentration of 161.9 ppm, which is 3.24 times the permissible exposure limit of 50 ppm.  Exposure was determined by percent carboxyhemoglobin in blood.   (e) On or about November 1, 2025, in a school locker room under renovation, a concrete finisher was exposed to carbon monoxide at an 8-hour time-weighted average concentration of 204.6 ppm, which is 4.09 times the permissible exposure limit of 50 ppm.  Exposure was determined by percent carboxyhemoglobin in blood.

Issued

2026-04-30 00:00:00

Abate by

2026-05-27 00:00:00

Penalty

Initial $0.00 · Current $0.00

Hazardous substances C730

General-duty citation text

29 CFR  1926.55(b): Feasible administrative or engineering controls were not implemented to reduce employee exposure(s) to a substance(s) listed in Table 1 or 2 of 1926.55:  (a) On or about November 1, 2025, in a school locker room under renovation, feasible administrative or engineering controls were not implemented to reduce employee exposure to carbon monoxide to or below the permissible exposure limit of 50 ppm as an 8-hour time-weighted average.