Why surge water is always Category 3
Floodwater from outside has run through streets, storm drains and sometimes an overwhelmed sewer before it reaches a house. It carries salt, sand, fuel and bacteria. Under the IICRC standard that makes it Category 3, so the mitigation team removes porous materials it touched instead of trying to dry them.
- Drywall is cut 12 to 24 inches above the high-water line
- Insulation, carpet, pad and soaked cabinets come out
- Sand and silt are shoveled and vacuumed before washing
- Hard surfaces get cleaned, then an EPA-registered antimicrobial
