Water expertise France

Risk management and adaptation

PROJECT / Reusing water in order to respond to water stress in the Los Angeles area (California)

SUEZ environnement - 04/07/2015 Tag Tags : Climate Change, Reuse, Water stress
Risk management & adaptation

Risk management and adaptation ( 39 posts )

SUEZ environnement


City, Country: El segundo, Los Angeles County, California, U.S.A.


French partner submitting the project description: SUEZ environnement

Project Owner: SUEZ environnement


Foreign partners: United Water (subsidiary of SUEZ environnement) and West Basin Municipal Water District


Dates of project: 1995- present




A few words on the project…

SUEZ environnement provides reuse water for various purposes in order to manage droughts in southern California, and specifically in the Los Angeles region, by creating a cutting-edge plant to recycle wastewater.


Background or General project description

For over twenty years, Southern California has suffered from droughts, worsening in frequency and intensity as a result of climate change, leading to excessive pumping of underground water reserves while the population continues to grow. Water shortages are estimated at between 5,000 and 15,000 million cubic meters per year. Therefore, Southern California is becoming increasingly dependent on transfers of water from hundreds of kilometers, while the transfer infrastructures are undersized.


French Expertise

United Water, the American subsidiary of SUEZ environment currently operates the Edward C. Little Water Recycling Facility, a cutting-edge plant that reuses treated wastewater for non-domestic purposes and produces five different qualities of water for uses as varied as watering gardens, irrigation, water supply to boilers and cooling towers in refineries and the replenishment of groundwater resources, preventing saltwater intrusion.

Each day it produces 190,000 m3 of recycled water. As a result, the Edward C. Little Water Recycling Facility made it possible to reduce the imports of drinking water by 60 to 80% of total demand.

It provides water to the municipal district of West Basin, 6th largest district of California, whose service area includes 300 clients served with 17 municipalities including Beverly Hills, Malibu or West Holywood. It also supplies industrial customers such as BP, Chevron and Exxon Mobil, and many irrigating farmers.

In 2014 the West Basin Municipal Water District renewed its trust in SUEZ environment by signing a five-year service agreement.


Strengths of project

The Edward C. Little Water Recycling Facility is also efficient from an energy point of view: 105 MWh per day of energy consumption used for the production of water for irrigation are saved. In addition, 10% of the energy consumption of the plant comes from 5600 m2 of solar panels.

This plant produces less energy (0,8KW saved per m3 of irrigation water produced, or 105 MWh / day) and emits less greenhouse gas-and-effect, it provides annually avoid 356 tons of greenhouse gases greenhouse compared to water transfer processes.

The cost per m3 product recycled wastewater is half the price of imported water (2.2 against 4.4 US $ / kgal).

More information