OSHA inspectors responded to a hazardous incident at Tampa Electric Co.’s facility in Gibsonton, Florida, that sent four workers to the hospital. Inspectors determined that anhydrous ammonia, a chemical refrigerant, was released when a relief valve activated after a pipeline became over-pressurized. OSHA cited the company for failing to ensure that workers wore appropriate respiratory protection, and for not including all minimum requirements in their emergency response plan. Critical Intervention Services, a security services provider, was also cited for not training workers on hazardous chemicals, and failing to develop and implement a written hazard communication program. Proposed fines for both companies total $43,458.For more information, read the news release.