Text For Citation: 01 Item/Group: 002B Hazard: CHEMNEP

29 CFR 1910.119(d)(3)(ii) The employer did not document that equipment complies with recognized and generally accepted good engineering practices (RAGAGEP). (a) Machine Room Roof, on or about November 29, 2010, and at times prior thereto, the employer did not document that relief venting for the VES-HX- ACC-4-Accumulator complied with RAGAGEP in that, the relief vents were at approximately 8 feet above the work surface which is less than the required 15 feet above the adjacent grade or roof level. (b) Machine Room Roof, on or about November 29, 2010, and at times prior thereto, the employer did not document that relief venting for Condensers 5A, 5B, 6A, 6B complied with RAGAGEP in that, the relief vents were at approximately 1 foot below work surface on top of the condensers which is less than the required 15 feet above the adjacent grade or roof level. (c) Machine Room Roof, on or about November 29, 2010, and at times prior thereto, the employer did not document that relief venting for the HX-3 Glycol/Water Chiller complied with RAGAGEP in that, the relief vents were at approximately 9-10 feet above the work surface which is less than the required 15 feet above the adjacent grade or roof level. (d) Machine Room Roof, on or about November 29, 2010, and at times prior thereto, the employer did not document that relief venting for the Machine Room Relief Vent (RV) Header complied with RAGAGEP in that, the relief vent was at approximately 5-6 feet above the work surface which is less than the required 15 feet above the adjacent grade or roof level. (e) Machine Room Roof, on or about November 29, 2010, and at times prior thereto, the employer did not document that the High Pressure Receiver complied with RAGAGEP in that, the charging line did not have a check valve to prevent the contents of the receiver from back flowing in the event of a severed charging line. (f) Machine Room Roof, on or about November 29, 2010, and at times prior thereto, the employer did not document that the ammonia piping mains, headers, and branches complied with RAGAGEP in that, they were not all identified as to the physical state of the refrigerant, the relative pressure, and the direction of flow. (g)Machine Room, on or about November 29, 2010, and at times prior thereto, the employer did not document that the piping and valves complied with RAGAGEP in that, they were not all tagged / identified / labeled to correspond with the P&ID drawings for equipment that includes, but is not limited to VES-HPR-2, High Pressure Receiver and Compressor HS-9. (h)Machine Room Roof, on or about November 29, 2010, and at times priorthereto, the employer did not document that the piping and valves complied with RAGAGEP in that, they were not all tagged, identified, & labeled to correspond with the P&ID drawings for equipment that includes, but is not limited to Condensers EC-6A & EC-6B, Glycol/Water HX-3, and VES-HX- ACC-4, Suction Trap. Note: Among other methods to comply with recognized and generally accepted good engineering practices, the employer may consider the following: 1.Ensure relief venting is in accordance with Equipment, Design, and Installation of Ammonia Mechanical Refrigerating Systems, ANSI/IIAR-2- 1999, Section 7.3.2 and/or Safety Standard for Refrigeration Systems, ANSI/ASHRAE Standard 15-2007, Section 9.7.8. 2.Ensure charging lines are equipped with check valves in accordance with the American National Standard Safety Requirements for the Storage and Handling of Anhydrous Ammonia, CGA G-2.1 / ANSI K61.1-1999, Section 7.4.2. 3.Ensure the ammonia piping system is identified in accordance with the Equipment Design, and Installation of Ammonia Mechanical Refrigerating Systems; ANSI/IIAR-2-1999, Piping, Section 7.1.4. 4.Ensure the ammonia system components (such as valves) are identified in accordance with Safety Standard for Refrigeration Systems, ANSI/ASHRAE Standard 15-2007, Section 11.2.2 (a). Abatement Note: Abatement certification and documentation ARE required for this item.