Mitigating Hazards of Hydrogen Sulfide

Proper training and precaution are critical when entering any sewer or confined space.

On Monday morning, Jan. 16, 2017, four utility workers employed by a private construction contractor responded to complaints of a sewage backup in Key Largo, Florida. One worker removed a manhole cover and descended into the 15-foot-deep drainage hole. Voice contact was lost. A...

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