Sewage, also called wastewater, is the contaminated water from homes, schools, and businesses. It comes from toilets, showers, clothes washers, dishwashers, etc. The contaminants include fecal matter, urine, soaps, detergents, food particles, hair, rags, paper, toys, dead goldfish, and anything else that is disposed in a drain. A person creates an average of 60 to 100 gallons of wastewater every day. Sewers are a network of pipes that bring the sewage to the treatment plant for treatment. Treatment is the continual process of removing the contaminants from the wastewater and then processing the removed contaminants into a product that can be safely recycled.