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Water Reclamation Plants

LA Sanitation (LASAN) operates four water reclamation plants that serve over four million people within two service areas containing over 600 square miles. These plants to remove pollutants from Los Angeles' sewage to produce recycled water, protecting our river and marine environments as well as public health. 

The plants reclaim significant amounts of beneficial materials from the wastewater. Together, they produce nearly 600 million gallons of recycled water per day. The water is used in place of potable water for industrial, landscape and recreational purposes in addition to other beneficial uses.

The plants use advanced technologies to produce biosolids that are used as fertilizers and soil amendments for agricultural and landscape applications. Another byproduct of the plant operation is energy. Biogas from Hyperion is converted into electricity and used to run the plant.
treatment process 2
From the initial process of screening and removing large items to the chemicals we add to clean the water, there is a very specific and organized way in which we must follow the steps used during the treatment process to ensure safety and best results.
Aerial shot of HTP
As the City's primary water reclamation plant, Hyperion is one of the largest treatment facilities in the world. It has been operating since 1925 and has a capacity of 450 million gallons per day.More about HYPERION WATER RECLAMATION PLANT
TI - Plants landing photo
Terminal Island Water Reclamation Plant, built in 1935, has undergone numerous upgrades over the years to comply with increasingly stringent state and federal clean water regulations.TIWRP uses full tertiary treatment and microfiltration reverse osmosis.

DCt plants landing photo
Donald C. Tillman Water Reclamation Plant began continuous operation in 1985. The plant combines advanced wastewater treatment technology with the beauty and tranquility of its landscaped Japanese Garden.More about DONALD C. TILLMAN WATER RECLAMATION PLANT
LAG , landing photo shot
Los Angeles-Glendale Water Reclamation Plant (LAG) is located in the eastern San Fernando Valley. The plant has a capacity of 80 million gallons per day.More about LOS ANGELES-GLENDALE WATER RECLAMATION PLANT
Tram photo for plants
LA Sanitation is pleased to offer free plant tours to the public.  Visit one of our plants for a hands-on experience to learn about the treatment process.More about PLANT TOURS