News reports put the September 2023 cloudburst near 10 inches of rain in a few hours. Storm drains overflowed, low streets turned into channels and water poured into basements across the city. That storm showed how fast outside water can reach homes that had never flooded before.
Why outside water is Category 3
Floodwater carries soil, road oil, lawn chemicals and overflow from sewers on its way into a house. The IICRC S500 standard treats it as Category 3, the same as sewage, so the cleanup follows the stricter steps.
- Crews wear protective gear and set up containment where needed
- The extraction crew pumps out the water and shovels out silt and debris
- Carpet, pad, drywall and insulation the water touched come out
- Hard surfaces are cleaned and treated with an EPA-registered antimicrobial



