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Sewers – they bring it to Hyperion

Four major sewer lines carry a river of wastewater to Hyperion for treatment from homes and businesses throughout much of Los Angeles and 29 contracting cities. On an average day without rain, about 350 million gallons flow into the plant. That would fill 500 Olympic-sized swimming pools. On rainy days the volumes get much larger. The plant can treat up to 1000 million gallons per day. These sewers are some of the largest in the wastewater system world – over eight feet in diameter.