During construction and maintenance of sewage and wastewater plants, workers may be killed by drowning, trench collapses, falls, confined spaces, and exposure to chlorine or hydrogen sulfide gas. The work can also make you sick. Sewage and wastewater contain bacteria, funguses, parasites, and viruses that can cause intestinal, lung, and other infections. If equipment, work practices, and personal protective equipment (PPE) don't protect you from swallowing these agents, you can get sick. During any part of treatment, transport, or application of sewage sludge, you can be exposed to materials that can cause disease. This is true even if you work around treated (class B) biosolids. Careful work habits can help protect you.
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