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

29 CFR 1910.119(d)(3)(ii): The employer did not document that equipment complies with recognized and generally accepted good engineering practices: For the Commercial Warehousing ammonia refrigeration facility located at 101 and 102 Industrial Blvd. in Winter Haven, FL as observed on or about 1/15/2015: a) Pressure vessels in the engine rooms such as, but not limited to, the T6-North were operated at temperatures below their minimum design metal temperature. b) Ammonia detectors were not interlocked to ventilation fans in engine rooms, and ventilation fans in engine rooms did not have an interlocked supervisory alarm that would sound if the ventilation fans shut off. c) Remote actuation of ventilation system, outside of engine room, was not available. The only way to turn on fans was from a breaker inside the engine rooms. d) Ammonia relief vent discharge was located at a height of 19-20 ft. above ground and only 9-12 ft. from the T6 north engine room's ventilation intake while the employer's process safety information stated that the relief discharge shall not be within 20 feet of a ventilation intake. This location exposed employees working outside in the area around the high pressure receiver, the condensers, and at the engine room entrance door to potential ammonia concentrations above ammonia's IDLH, 300 ppm. The relief discharge's location also resulted in the potential for ammonia vapors to be pulled back into the engine room from the ventilation intake.