Sewage damage is often referred as black water.

Sewage damage is often referred as "black" water. Sewage backup contains pathogenic agents that arise from contaminant sources. Sewage damage can cause discomfort or sickness. A Sewage backup is serious, it should only be cleaned up by a certified crew. Stay out of the building until the sewage backup is cleaned correctly. Make sure sewage removal is cleaned by a certified person. Bio hazardous water caused by a sewer backup must be cleaned safely and according to health regulations.