Text For Citation: 01 Item/Group: 001 Hazard:

29 CFR 1910.119(d)(3)(ii): The employer shall document that equipment complies with recognized and generally accepted good engineering practices: At a facility located at 802 South Street, Plymouth, WI 53073; the employer did not document that equipment complied with recognized and generally accepted good engineering practices (RAGAGEP) such as, but not limited to: a) Compressor room emergency ventilation alarm. The employer failed to document compliance with the employer's chosen RAGAGEP including ANSI/IIAR 2 (2008) - "Standard for Safe Design of Closed-Circuit Ammonia Refrigeration Systems" and ASHRA 15 and 34 (2013) - "Safety Standards for Refrigeration Systems" when the compressor room's emergency ventilation system was not equipped with an alarm that indicated when the emergency ventilation system failed. This hazardous condition exposed employees working in the compressor room to the hazards of inhalation of airborne anhydrous ammonia. b) Compressor room emergency ventilation exhaust location. The employer failed to document compliance with the employer's chosen RAGAGEP including ANSI/IIAR 2 (2008) - "Standard for Safe Design of Closed-Circuit Ammonia Refrigeration Systems" and ASHRA 15 and 34 (2013) - "Safety Standards for Refrigeration Systems" when the compressor room's emergency ventilation system exhausted into the alleyway between the main building, condensers and boiler house. The emergency ventilation exhausted outside but within less than 2 feet of an exit door of the main building and in a manner that could expose employees in the alleyway to the hazards of inhalation of airborne anhydrous ammonia. c) Portions of piping associated with anhydrous ammonia refrigeration system; including but not limited to the compressor room equipment's pressure relief system, Compressor 28 (B-ER-CMP-028), Low Pressure Receiver 55 (B-ER-REC-055), Evaporative Condensers 1-4, (T-SW-CND-264, T-SW-CND-265, T-SW-CND-266, T-SW-CND-267) and Evaporative Condenser Receiver (High Pressure Receiver T-SW-CND-270). The employer failed to document compliance with the employer's chosen RAGAGEP, IIAR Bulletin 114 (2014) - "Identification of Ammonia Refrigeration Piping and System Components" when portions of piping used in the anhydrous ammonia refrigeration system were not labeled, or were not labeled at changes in piping direction and on extended runs of pipe (maximum spacing of 40 feet between markers). This hazardous condition exposed employees to the hazard of inhalation and burns from anhydrous ammonia liquid and vapors. d) Anhydrous ammonia refrigeration system vessels; including but not limited to Low Pressure Receivers 53, 55, 56, 57 (B-ER-REC-053, B-ER-REC-055, B-ER-REC-056, B-ER-REC-057) and Evaporative Condenser Receiver (High Pressure Receiver T-SW-CND-270). The employer failed to document compliance with the employer's chosen RAGAGEP, IIAR Bulletin 114 (2014) - "Identification of Ammonia Refrigeration Piping and System Components" when vessels were not labeled with the standardized marker, the component name and pressure level. This hazardous condition exposed employees to the hazard of inhalation and burns from anhydrous ammonia liquid and vapors.