Text For Citation: 01 Item/Group: 006B Hazard: CHEMNEP

29 CFR 1910.119(j)(4)(iii): The employer's frequency of inspections and tests of process equipment was not consistent with applicable manufacturer's recommendations and good engineering practices, and more frequently if determined to be necessary by prior operating experience: (a)Hill Air Force Base, at 7290 Weiner Street, Hill Air Force Base, UT: On and preceding 3/16/11, Hill Air Force Base's frequency of inspections and tests of process equipment was not consistent with applicable manufacturer's recommendations and good engineering practices. The wastewater treatment plant, Building 575, used sulfur dioxide to reduce chromium (VI) to chromium (III). The employer maintained approximately four thousand pounds of liquified sulfur dioxide in the system. Process equipment included, but is not limited to Thatcher Chemical Company one ton containers of liquified sulfur dioxide, Capital Controls Company Inc Evaporator, Capital Controls Company Inc Vacuum Regulator, Capital Controls Company Inc High and Low Vacuum Switches, Capital Controls Company Inc 1620B gas detector, and Capital Controls Company Inc Injector. The employer did not perform annual inspections, testing, maintenance, or replacement of parts per manufacturer's recommendations or per good engineering practices. This condition exposed employees to a sulfur dioxide hazard. Abatement Note: Abatement for this item may be achieved through compliance with Compressed Gas Association CGA G-3 1995 "Sulfur Dioxide". Abatement Note: Abatement certification is required for this item (See enclosed "Sample Abatement-Certification Letter").-Certification