The Hyperion Water Reclamation Plant (HWRP) is one of the largest water reclamation facilities in the United States, receiving an average of 275 million gallons of wastewater every day. The plant has a maximum daily flow of 450 million gallons per day (mgd) and maximum peak wet weather flow of 800 mgd. Hyperion 2035 is Los Angeles Sanitation and Environment’s (LASAN) vision for recycling 100% of the wastewater. A key early step towards Hyperion 2035 is the construction of the Hyperion Advanced Water Purification Facility (Hyperion AWPF). This project serves as a “proof of concept” for the full conversion of HWRP to a 100% water recycling facility and potential future potable reuse applications. The project will also support diversification of the city’s water portfolio and reduce dependence on imported water.
To help create a new, sustainable water supply for Los Angeles and maximize water reuse at HWRP, the Walsh/Brown and Caldwell (BC) design-build team is working with LASAN to construct a 1.5 mgd Hyperion AWPF. The facility will treat primary effluent from HWRP to high-quality, nitrified-denitrified recycled water for various uses at the Los Angeles World Airport (LAWA), including cooling tower make-up water, toilet flushing, irrigation, and other nonpotable uses. The recycled water will also be used at HWRP to offset potable water in its wastewater treatment processes, as well as provide recycled water to existing internal infrastructure.