Why Sewage Is Different From Other Water Losses
Sewage backup contains bacteria, viruses, fungi, and parasites โ all of which can cause serious illness with even short exposure. The protocol for cleanup is fundamentally different from cleaning up a clean-water leak:
- Full PPE required: Tyvek suits, respirators with HEPA cartridges, nitrile gloves, eye protection. Not optional.
- Most porous materials must be removed: carpet, carpet pad, drywall up to 2 feet above the contamination line, baseboards, insulation, untreated wood that absorbed contaminated water.
- Hard surfaces require multi-step decontamination: physical removal of contamination, then EPA-registered antimicrobial application (typically a quaternary ammonium compound), then HEPA vacuuming.
- Building must be evacuated during cleanup: the cleanup itself aerosolizes pathogens, so occupants stay out until decontamination + antimicrobial complete.
Skipping any of these steps creates liability for the homeowner and dangerous conditions for occupants. The "we just sucked it up and dried it out" approach you might use for clean water is not appropriate here.