The Dangers Associated with Sewage Contamination
Sewers are designed to take sewage from properties and in most cases surface water that runs off roads, footpaths and paved areas. While our sewer system can cope with day-to-day volumes, exceptional weather can overwhelm it and cause flooding. A sewer collapse, pumping station failure, or blockage caused by root growth or sanitary items being flushed down the toilet can also result in Sewage Contamination overflows. However, most sewer flooding incidents from public sewers are the result of heavy rainfall, flooding from highways, rivers and other watercourses, insufficient land drainage, surcharge from private sewers and drains, and blockages caused by misuse of the sewers.
There are wide ranges of bacterial infections that can result from contact or ingestion of mainly grey or black water classifications. Some include E. Coli, Botulism, Dysentery, Leptospirosis, Salmonellosis. All the above are present when the water has some contamination of sewage, is stale or contains other nutritional substances which promotes the growth of bacteria. These bacteria will induce a range of sickness including diarrhoea, flu like symptoms, double vision, fever and respiratory failure.
Forensic Cleaning is a highly specialised cleaning and remediation disciple which requires technicians to undergo in-depth training and continuous on-the-job learning to ensure all biohazard and pathogens are removed
Categories of Sewage Contamination
Sewage contamination damage is much like flood damage in terms of the effect it will have on property. Unlike clean flood water sewage contains the addition risk to human health, not to mention the fact that many people, do not wish to deal with a spill or do not have the correct personal protective equipment or disinfectants to clean up correctly.
Category 1 is Clean Water. Although not considered sewage, clean water can become hazardous if left in contact with hygroscopic surfaces.
Category 2 is Grey Water. Grey water is generally considered unsanitary and can cause illness to humans and can be caused by washing machine, toilet, waterbed or dishwasher leaks. Like all sewage spills, grey water damage is intensified by the time taken to remedy the spill and temperature of the building and location the spill has occurred in. Category 2 sewage spills should be remediated as a priority to ensure contamination and pollutants are kept to a minimum.
Category 3 Sewage is Black Water. Black water always contains pathogens making it a serious health and bio-hazard contamination. Black water can consist of, but is not limited to, sewage that contains urine and faeces, chemical waste, medical waste or sea water, river, water or ground surface water containing silt and organic matter. Sewage Contamination Clean Up of a Category 3 nature must be remediated as a priority.