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. This joint effort, financed by both LADWP and LASAN, integrates technical expertise and operation coordination from both agencies to demonstrate feasibility of producing high-quality recycled water at-scale. The plant has a maximum daily flow of 450 million gallons per day (mgd) and maximum peak wet weather flow of 800 mgd. The Pure Water Los Angeles program represents a collaborative initiative between the Los Angeles Department of Water and Power (LADWP) and LA Sanitation and Environment (LASAN), aimed at advancing water reuse in Los Angeles. A key early step towards Pure Water Los Angeles 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 worked with LASAN to construct a 1.5 mgd Hyperion AWPF. The new facility will treat primary effluent from the Hyperion Water Reclamation Plant (Hyperion WRP) to produce a 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 Hyperion WRP to offset potable water demands in its industrial water system, as well as provide recycled water to existing internal infrastructure.
