Understanding the Hazardous Sewage Contaminants Living in Floodwaters

poppy johnson • June 13, 2020

DIY should not be used for floodwater cleanups in Central Maryland, and here's why!

When water invades a home and seeps into living areas of a residence, the water becomes a verified intruder in more ways than one. Whenever there are floodwaters that flow into the lower levels of a home, there is the chance that sewage contaminants will be picked up by the floodwaters as well. Generally speaking, floodwaters are a destructive force in a home or business. It can penetrate foundations and lower level structures to weaken materials in the home’s inner walls and foundation quickly. Add to the element of general water damage the factor of sewage that can accompany water when there is a sewage leak event in the home or business property.

Most people don’t realize that when sewage water contaminates the basement area of a home, or lower levels of a commercial property, it brings with it a highly significant threat to human health and safety in those regions. Sewage and microorganisms create a dangerous mix when raw sewage mixes with floodwaters during high and severe weather events. The reason that sewage water is so dangerous is because it contains high levels of contaminants, including:
•    Volatile organic compounds (VOCs)
•    Sterols
•    Salmonella
•    Shigella
•    Staphylococcus
•    Nitrobacter
•    Bacteria
•    Bacillus
•    Clostridium
•    Human waste
•    Lead
•    Mercury
•    Flagellates
•    Viral pathogens
•    Hepatitis A
•    Anaerobic bacteria
•    Detergents
•    E. coli
•    Pathogenic organisms
Likewise, there are also environmental factors that hold dangers when exposed to them, such as:
•    Biologically active compounds
•    CODs, BODs, TOCs
•    Phosphorus
•    Grease and oils
•    Biodiesels
•    Environmental hazards
•    Environmental estrogens
•    Nitrogen
•    Pharmaceuticals

Any time that there is the possibility of raw sewage mixing with floodwaters, there is a high risk of dangerous diseases that can be part of the equation. The cleanup of sewage leaks can be critical to help prevent adverse effects on human health. The presence of human waste in sewage water is especially dangerous because there are over 100,000 different types of viruses that are found in human waste. Other pathogenic diseases that can be spread through sewage water include:
•    Gastroenteritis
•    Typhoid fever
•    Diarrhea
•    Cholera

It is important to note that many dangerous chemicals are present in the ground and when floodwaters pass over these areas, the water naturally picks up and carries the contaminants with it to be deposited elsewhere. For this reason, the chemicals that may be present in sewage water may also vary depending on the type of catchment, such as to whether there are combined:
•    Domestic wastes
•    Industrial wastes
•    Dead animal wastes

In the event that a residence or commercial building is contaminated with a sewage backup, the sewage needs to be cleaned up and the area requires sanitation immediately. Once the sewage is able to penetrate the walls of a home structure, the wood, concrete or other areas of the home related to the foundation of a building or the building itself, there is the opportunity for the growth of dangerous microorganisms and mycotoxins to occur.

Generally speaking, the sewage will leave behind a long list of contaminants, waste products, diseases and hazardous compounds, which threaten human health and safety. In some areas, the water and fungus often accompanying a sewage backup allow the prime conditions to exist for the initialization of a growth of gram-negative bacteria, toxic fungus and dangerous microorganisms that are adverse and hazardous to human health.

Any time that you have a sewage water leak or floodwaters that contain sewage or contaminated water affecting your residential or commercial property, just give us a call. We will come to you fast to remediate sewage water cleanups to protect your property and your health. We will get you back up and running fast. Call us today, we have crews standing by to service you right now! 
Questions to Ask Before Choosing a Fire Damage Restoration Company
By Rachael Eslao June 27, 2025
When every moment counts, trust the experienced team at Restoration 1 of Central Maryland to restore your home with care and precision.
What to Do When Your Basement Floods in Sykesville, MD
By Rachael Eslao June 18, 2025
Don’t let water damage spiral into a bigger issue. Call Restoration 1 of Central Maryland for fast, reliable basement flood restoration in Sykesville and the surrounding area.
Tips for Documenting Water Damage for Insurance Claims
By Rachael Eslao May 1, 2025
At Restoration 1 of Central Maryland, we not only handle your cleanup and restoration—we also guide you through the insurance process to make recovery as smooth as possible.
Basement Waterproofing: Is It Worth the Investment?
By Rachael Eslao May 1, 2025
Need help assessing your basement? Call our Sykesville-based team for a professional evaluation and personalized waterproofing solution.
Does Water Damage Lower Our Property Value of Your Home?
By Rachael Eslao April 16, 2025
Whether you're preparing to sell or just want peace of mind, trust Restoration 1 of Central Maryland to help protect your investment with prompt, professional service.
How to Stop Water From Spreading in Your Home
By Rachael Eslao April 9, 2025
When water starts invading your home, every second counts. Whether it's a burst pipe, a leaking roof, or an overflowing appliance, acting fast can prevent extensive damage and save you thousands in repairs.
How to Waterproof Your Home Before Storm Season Hits
By Rachael Eslao March 13, 2025
At Restoration 1 of Central Maryland, we specialize in storm damage restoration and waterproofing solutions to keep your home protected all year long. Don’t wait until a storm hits—contact us today for an inspection and peace of mind.
Is Your Water Damage Making You Sick? Health Risks to Watch For
By Rachael Eslao March 13, 2025
At Restoration 1 of Central Maryland, we specialize in water damage restoration, mold remediation, and emergency cleanups. If your home in Sykesville, MD, has suffered from water damage, don’t wait—contact us today for a professional inspection and restoration.
The Hidden Dangers of Untreated Water Damage
By Rachael Eslao February 3, 2025
Ignoring water damage is never worth the risk. If you suspect water damage in your home, don’t wait—contact Restoration 1 of Central Maryland today! Our 24/7 emergency services ensure that your home is restored quickly and safely.
A Homeowner’s Guide to Different Types of Water Damage
By Rachael Eslao January 3, 2025
Understanding the types of water damage can help homeowners respond effectively and mitigate long-term damage. At Restoration 1 of Central Maryland, we’ve seen it all. Here's a guide to the different types of water damage and how they can impact your home.
More Posts