Category 1 or white water originates from a hygienic source such as a water supply line or melted snow.
Category 2 or grey water has been exposed to contaminants, such as rainwater, bath or shower water, discharge from a washing machine or dishwasher, aquariums, etc.
Category 3 or black water is highly dangerous and may contain pathogenic or toxigenic contaminants from sources like sewage, toilet backflows, seawater, river or lake water, and water containing toxic substances. This includesall floodwater.
14.6 million U.S. homes are at risk of flooding.