Sewage backup is classified as Category 3 "black water" — the most dangerous category of water damage. Raw sewage contains a wide range of pathogens that can cause serious illness. Understanding these risks is essential for protecting your family.

What Pathogens Are in Sewage Backup?

• E. coli — can cause severe gastrointestinal illness
• Hepatitis A — liver infection spread through fecal contamination
• Salmonella — causes food poisoning-like symptoms
• Cryptosporidium — parasitic infection affecting the digestive system
• Giardia — intestinal parasite causing prolonged illness
• Rotavirus — highly contagious gastrointestinal virus
• Leptospirosis — bacterial infection that can cause organ failure

Why DIY Sewage Cleanup Is Dangerous

Without proper personal protective equipment — respirators, Tyvek suits, gloves, and eye protection — exposure to sewage backup creates serious health risks. Pathogens can be inhaled, absorbed through skin, or ingested through hand-to-mouth contact. Even brief exposure without proper PPE can cause illness.

What Professional Sewage Cleanup Involves

Professional sewage backup remediation involves full PPE deployment, containment of affected areas, removal and proper disposal of all contaminated materials, commercial-grade disinfection of all surfaces, HEPA air scrubbing to remove airborne pathogens, and post-remediation testing to confirm the area is safe.