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

29 CFR 1926.651(g)(1)(iii): Employer did not ensure that adequate precaution was taken, such as providing ventilation, to prevent employee exposure to an atmosphere containing a concentration of a flammable gas in excess of 20 percent of the lower flammable limit of the gas: (a) Dominguez Welding LLC, at Sekich tank battery, Weld County Road 13 and Weld County Road 32, Mead, CO: On 5/25/17, Dominguez Welding LLC did not ensure that adequate precaution was taken to prevent employee exposure to an atmosphere containing a concentration of a flammable gas in excess of 20 percent of the lower flammable limit of the gas. Dominguez Welding LLC directed and controlled the work of two welder's assistants at a construction project at a crude oil tank battery. Work was performed in and adjacent to an excavation for the produced water pipe from the separator to the produced water tank and for the oil fill pipe, backpressure pipe, and bypass pipe from the separator to crude oil tank #1. Dominguez Welding LLC did not ensure that all entrants to the excavation under the direction and control of Dominguez Welding LLC wore a four gas meter. This condition exposed a welder's assistant to fire and explosion hazards.