Afterloss The first hour
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Category 2 — Significantly contaminated water

Professional requiredThis page explains the work. It does not tell you how to do it, because doing it without training and equipment is unsafe.

Water category: Category 2 — Significantly contaminated water

Porous materials frequently come out rather than being dried in place. This is where scope, and cost, diverge sharply from a Category 1 loss.

Carries significant contamination and has the potential to cause discomfort or sickness — discharge from a washing machine or dishwasher, toilet overflow containing urine but no faeces, water that has degraded from Category 1. Porous materials frequently come out rather than being dried in place. This is where scope, and cost, diverge sharply from a Category 1 loss.

Where it comes from

Carries significant contamination and has the potential to cause discomfort or sickness — discharge from a washing machine or dishwasher, toilet overflow containing urine but no faeces, water that has degraded from Category 1.

What it means for the work

Porous materials frequently come out rather than being dried in place. This is where scope, and cost, diverge sharply from a Category 1 loss.

How it changes with time

Category 2 degrades to Category 3 with time and contact.

This is the part that explains the bill. The same loss, addressed in six hours or discovered in six days, can be two different scopes.

Why this needs a professional

This page explains what Category 2 water is and what follows from it. It contains no cleaning or removal procedure, and that omission is deliberate: porous material that contacted it is generally removed rather than dried, and that determination is not made by looking.

What comes next

Anything left wet becomes a mold question once EPA's 24 to 48 hour drying window has passed. See mold and mold sublimits.

Sources

Every source cited on this page

  1. T2ANSI/IICRC S500 — IICRC (accessed 2026-08-22)
  2. T1A Brief Guide to Mold, Moisture and Your Home — US EPA (accessed 2026-08-22)
  3. T1About Mold and Health — CDC (accessed 2026-08-22)
Written by: PLACEHOLDER — Restoration ReviewerReviewed by: PLACEHOLDER — Claims ReviewerSafety reviewed by: PLACEHOLDER — Restoration ReviewerLast reviewed:

Guidance that does not name a water category, a smoke type, or the peril and whether the water was internal or external is not specific enough to act on. This page names them.