Types of Water Damage: Clean, Grey & Black Water Explained
Not all water damage is the same — and understanding the type of water in your home helps determine how dangerous it is, how it’s cleaned up, and what restoration is required.
At Vault Mold Removal, we identify and treat all categories of water damage for homes and businesses in Provo, Orem, Springville, and surrounding areas.
Why the Type of Water Damage Matters
Water damage is classified into three categories based on contamination level. These categories affect the risks, equipment, and safety protocols needed during restoration:
- Category 1 – Clean Water
- Category 2 – Grey Water
- Category 3 – Black Water
Category 1: Clean Water
Clean water damage comes from sanitary sources and poses the least risk if addressed quickly. This is the easiest to restore and often includes:
- Burst supply pipes
- Overflowing sinks or tubs (no contaminants)
- Melting snow or rainwater that hasn’t contacted ground or waste
⚠️ Note: If not dried quickly, clean water can turn into grey or black water within 24–48 hours due to bacteria or mold growth.
Category 2: Grey Water
Grey water contains moderate contaminants that may cause illness or discomfort upon contact. It requires safe removal and disinfection.
- Dishwasher or washing machine leaks
- Toilet overflows (without solid waste)
- Water from sinks, showers, or bathtubs
Learn more about grey water damage cleanup →
Category 3: Black Water
This is the most dangerous type of water damage. Black water contains bacteria, viruses, and contaminants that pose serious health risks.
- Sewage backups
- Flood water from rivers or streets
- Storm surge or groundwater
Black water requires professional biohazard cleanup and full structural drying.
More about black water restoration →
Need Help Identifying Your Water Damage Type?
Don’t take chances with contaminated water. Our licensed team uses advanced testing and moisture detection to properly identify and restore your property based on the type of damage present.
📞 Call (385) 250-2825 or Request an Inspection Online