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Fire & Water - Cleanup & Restoration

The 3 Types of Flood Water

8/5/2020 (Permalink)

SERVPRO Logo. While all floods can cause problems, Category 3 flood water is, by far, the most dangerous type of contamination.

Flooding is one of the biggest headaches for homeowners today. They always pose an issue, but the type of floodwater present can make a big difference in how the situation needs to be handled. Arm yourself with knowledge and protect your home in Whitemarsh, PA, from all types of overflow.

Types of Water
Flood water is categorized by the contaminants present in the overflow. There are three major types, each more dangerous than the last:

Category 1: This is the safest type of water on the list. It is completely sanitary and does not pose a threat to humans or animals if consumed. That being said, you should never attempt to drink any type of water in a flood. If this water comes into contact with contaminants, it can transform into one of the other two types on this list.


Category 2: Category 2 damage is not completely sanitary, but it's also not the most dangerous type of water. It usually originates from a dirty dishwasher or water that was used in a washing machine.


Category 3: This is the most dangerous type of water contamination. Category 3 water is more commonly referred to as blackwater or sewage. It can result from a toilet overflow, sewage backflow or some other type of dangerous spillage. It is an extreme biohazard and should never be handled alone. Instead, you should contact professional assistance.

Category 3 Water Damage
It's natural to want to immediately rush in and save your possessions when faced with a Category 3 flood. You should never attempt to interact with blackwater yourself, especially without proper protective gear. Taking the proper protective measures prior to a major flood is the most effective way to defend your property. Move all-important possessions and documents to high shelves on the top floor of your house.


While all floods can cause problems, Category 3 flood water is, by far, the most dangerous type of contamination. Because of the dangerous biohazards present, you should never attempt to handle the situation yourself. Instead, contact flood remediation experts if faced with dangerous levels of blackwater.

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