The 3 Basic Categories of Water

7/22/2022 (Permalink)

The 3 Basic Categories of Water

Category 1: White/Clean Water
The water stems from a clean source and poses no substantial risk from contact, ingestion, or inhalation. However, it can develop in another category if it comes into contact with other surfaces or materials. Typically, Category 1 water will evolve into Category 2 after 24 hours if left untreated.

Category 2: Grey Water
Grey water is contaminated water that doesn’t contain sewage. It may still contain some contaminates and has the potential to cause illness if contacted or ingested. It may contain potentially dangerous levels of microorganisms or nutrients for microorganisms, as well as other organic or inorganic matter (chemical or biological). Grey water can arise from sources such as a sink, washing machine, or the shower. Grey water can be used on your lawn or garden but if left unattended for 48 hours it can become Category 3.

Category 3: Black Water
Black water contains sewage or has encountered fecal matter. It is grossly contaminated and may contain pathogenic bacteria or other harmful agents. Such water sources may carry silt, organic matter, pesticides, metals, or toxic organic substances.

Time and temperature can also affect the quality of water and change its category.

*Refer to the IICRC S500 for complete definitions. 

SERVPRO of Rock County  is equipped and ready to handle any water situation. Please call anytime 608-754-7202