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Fire & Water - Cleanup & Restoration

Is Category 3 the Worst Water Damage?

4/20/2019 (Permalink)

Category Three water may contain biohazards that pose health risks to humans and animals.

The categories of water damage used by restoration professionals refer to the degree of contamination, not the level of damage. Category Three flood water is highly contaminated and calls for the most extensive cleaning and disinfection measures. Find out more about Category Three black water and how it differs from Category One and Category Two damage.

Contamination Levels

Category Three water is more contaminated than Category Two gray water or clean Category One water. Black water may contain a variety of contaminants:

  • Bacteria
  • Chemicals
  • Dirt and debris
  • Solid waste

This category of damage is used to describe flood water and water that originates from a toilet overflow or sewer backup. It is crucial to clean and disinfect any areas, materials or contents of a building that are exposed to Category Three water.

Bacteria and Mold Risks

Category Three water may contain biohazards that pose health risks to humans and animals. The combination of organic materials and moisture that this type of water damage introduces to a structure can rapidly increase the risk of mold growth. It is important to thoroughly clean, disinfect and dry damaged areas, building materials and content to reduce these risks.

Effects on Materials and Contents

Porous building materials and contents that cannot be thoroughly disinfected should be discarded during mitigation and replaced as part of the restoration process. These materials and contents may include any of the following:

  • Drywall
  • Carpet
  • Insulation
  • Mattresses

It is safer to dispose of these materials than to attempt disinfection. If these materials or contents remain in place, they can increase the likelihood of mold growth or raise health risks.

Due to the level of contamination in Category Three water, it is necessary to work quickly to extract flood water and disinfect the affected area. Building owners can depend on the expertise and equipment of water damage restoration professionals in Las Vegas, NV.

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