Water Damage Restoration Technician (WRT) Certification Practice Test 2026 – Your All-in-One Guide to Mastering the Exam!

The definition of water that has a significant degree of contamination and potential to cause sickness refers to Category 3 water. This classification encompasses water that is either highly contaminated or has been affected by pathogens and harmful substances. Typical sources of Category 3 water include sewage, floodwater, or water from rivers and streams that can carry contaminants. This type of water poses serious health risks if ingested or comes into contact with humans, necessitating immediate and thorough remediation to protect public health.

Understanding this category is vital in water restoration scenarios, as it guides responders in determining the appropriate safety measures and procedures to mitigate the risks associated with contaminated water.