The short answer
What Is in Sewage Water
Sewage contains a mix of human waste, flush water, and whatever went down drains. That can include bacteria like E. Coli and salmonella, viruses such as hepatitis A, and parasites like giardia. These pathogens thrive in warm, damp conditions and can survive on surfaces for days.
The water itself is a biohazard, even if it looks clear or smells mild. Porous materials like drywall, carpet, and wood soak up contamination and keep it active. Anything the water touches, from a child's toy to a food prep surface, becomes a potential exposure point.
How You Can Get Sick
Direct contact with sewage water is the most obvious route. Splashes can reach your eyes, nose, or mouth, and touching contaminated surfaces then touching your face spreads pathogens. Cuts or scrapes on your skin make infection much easier.
Inhaling tiny droplets from contaminated water or from dried sewage dust can irritate your lungs and cause respiratory symptoms. This is a particular concern in enclosed spaces like basements or crawlspaces. The longer the water sits, the more it dries and the more particles become airborne.
- Stomach cramps and diarrhea from swallowed pathogens
- Skin rashes or infections from contact with contaminated water
- Eye irritation or infections from splash contact
- Respiratory symptoms like coughing or wheezing from inhaling droplets
- Flu-like symptoms, fever, and fatigue from a developing infection
Who Faces the Highest Risk
Anyone can get sick from sewage exposure, but some people are more vulnerable. Young children often put hands in their mouths and have developing immune systems. Older adults may have weaker defenses, and those with chronic conditions like diabetes or lung disease face added strain.
Pregnant women and people taking immunosuppressive drugs also need to be especially careful. If you fall into one of these groups, avoid the affected area entirely until cleanup is done. Have a healthy adult handle the initial response and keep children and pets away.
Signs You Need Medical Care
Mild symptoms like a brief stomach upset may pass on their own, but some signs warrant a doctor's visit. Persistent vomiting, bloody diarrhea, high fever, or signs of dehydration are reasons to seek medical help. Skin infections that spread or worsen also need attention.
If you inhaled sewage mist and develop a persistent cough, chest pain, or trouble breathing, get medical care. These symptoms can indicate a respiratory infection. Tell your doctor about the sewage exposure so they know what to test for. Do not wait to see if symptoms improve on their own.
Protecting Yourself During Cleanup
If you attempt any cleanup yourself, wear rubber boots, gloves, and eye protection. Use an N95 mask to reduce inhalation risk, and keep the area ventilated with open windows and fans. Wash any exposed skin with soap and clean water right away, and launder contaminated clothing separately.
Do not eat, drink, or smoke in the affected area, and keep children and pets out. Remove porous items like carpets and drywall that cannot be fully cleaned. For serious backups or if you feel unsure about handling it, local water damage pros have the equipment and training to manage biohazards safely. If you live in Bellingham, this kind of work is the right choice for professionals.
- Wear rubber boots, gloves, and eye protection
- Use an N95 mask and keep windows open
- Wash exposed skin immediately with soap and water
- Remove and discard porous materials like carpet and drywall
- Keep children, pets, and food away from the area
When to Call in the Pros
A small, contained sewage spill from a toilet overflow might be manageable on your own if you act fast and follow safety steps. But a larger backup that spreads across a floor, soaks into walls, or reaches a basement is a different matter. The risk of hidden contamination is high.
The pros use specialized equipment to extract water, clean surfaces, and dry the area properly. They can also identify which materials need to be thrown out and which can be saved. If you are uncertain about the extent of the damage or feel overwhelmed, calling for help is the safer choice for your health and your home.
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Call (360) 685-7801 any time, day or night, and describe what happened.
Call Now (360) 685-7801Frequently asked questions
Can sewage backup make you sick days later?
Yes, some pathogens have incubation periods. Symptoms like diarrhea, fever, or skin infections may appear a few days after exposure. If you experience any illness following a sewage backup, see a doctor and mention the exposure so they can test appropriately.
Is it safe to stay in the house during cleanup?
It depends on the size of the backup and your health. For small spills in a ventilated area, you might stay if you keep your distance. For larger backups or if you are in a high-risk group, it is safer to leave until cleanup is complete. Open windows to improve air quality.
Can sewage backup cause long-term health problems?
Most healthy people recover fully from sewage-related infections, but complications can occur. In rare cases, chronic conditions like reactive arthritis or kidney issues may develop. Prompt medical care and thorough cleanup reduce the risk. If you have lingering symptoms, follow up with your doctor.
More questions and answers
- What Health Risks Come From Sewage Exposure Indoors?
- What Does a Sewage Backup Smell Like vs. a Normal Drain?
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- Why Does Sewage Backup Happen During Heavy Rainfall?
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