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. 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 worked with LASAN to construct the 1.5 mgd Hyperion Advanced Water Purification Facility (Hyperion AWPF). The new facility will treat primary effluent from HWRP to produce high-quality, advanced treated recycled water for various uses at the Los Angeles International Airport (LAX), including cooling tower make-up water, toilet flushing, irrigation, and other non-potable uses. The recycled water will also be used at HWRP to offset potable water demands in its industrial water system, as well as provide recycled water to existing internal infrastructure.
The Hyperion AWPF represents a collaborative initiative between LASAN and LADWP. This joint effort, financed by both agencies, integrates technical expertise and operational coordination from both agencies to demonstrate the feasibility of producing high-quality recycled water at scale, including the Pure Water Los Angeles Program. Pure Water Los Angeles represents a collaborative initiative between LASAN and LADWP aimed at advancing water reuse in Los Angeles. A key early step towards Pure Water Los Angeles is the construction of the 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.
