Balboa Lake, a recreational lake in the City of Los Angeles, uses recycled water from  Tillman Water Reclamation Plant. 

Bahman Sheikh was Executive Director of the City of Los Angeles Office of Water Reclamation from 1989 to 1994.  He prepared the first master plan for water recycling for the City of Los Angeles, calling for a goal of REUSING 80 percent of the City’s recycled water by 2090.  That goal was adopted by the City Council and the LADWP Board of Water and Power.

Palo Verde Nuclear Power Plant, near Phoenix, Arizona, uses recycled water for cooling.

Satellite Water Recycling Plant in  a residential area.

Wildlife Lake in Marin County, CA, filled with recycled water.

Commercial offices in Jamboree Towers in Irvine, California, use recycled water for toilet flushing.


Purple (Panatone 249 C) is the standard color for pipes and fittings conveying recycled water.  This particular color was innovated at Irvine Ranch Water District in the 1970s  to distinguish recycled water lines from potable water lines.  This color standard is now adopted nearly universally wherever recycled water is used.


· Monterey Regional Water Pollution Control Agency

· San Francisco Public Utilities Commission

· Central Contra Costa Sanitary District

· Coachella Valley Water District

· Barwon Water, Victoria, Australia

· San Diego County Water Authority

· City of Petaluma, California

· WateReuse Association

· City of San José, California

· City of Redwood City, California

· Santa Clara Valley Water District

· Marin Municipal Water District

· U.S. Agency for International Development (USAID)

· King Saud University, Riyadh, Saudi Arabia

· Kuwait Institute for Scientific Research, Kuwait

· Food and Agriculture Organization of the United Nations (FAO)

· Ar-Riyadh Development Authority (ADA), Saudi Arabia

· The World Bank

· City of San Diego, California

· City of Los Angeles, California

· City of Chula Vista, California

· Los Angeles County Sanitation Districts

· Metropolitan Water District of Southern CA

· Las Virgenes Municipal Water District

· Melbourne Water, Victoria, Australia

· West/Central Basin Municipal Water Districts



· Scotts Valley, Pasatiempo Golf Club, Ripley Pacific

· Kennedy/Jenks Consultants, San Francisco, CA

· Carollo Engineers, Inc., Walnut Creek, CA

· AECOM Jordan, Washington, D. C.

· DAI International, Washington, D. C.

· Business Council for International Understanding (BCIU)

· Winsler & Kelly Consulting Engineers, Santa Rosa, CA

· CDM International Inc.

· PA Consulting Group

· Ripley Pacific Company, Pleasanton, CA

· Dorsch Consult Ingenieurgesellschaft mbH, Munich, Germany

· Chemonics, International Inc.

· ARD, Inc.

· Parsons Engineering Science

· Montgomery Watson


· Bechtel International

· Harza Environmental Services

· Bold, Polizner, Maddow, Nelson & Judson

· San Francisco Golf Club

· Lake Merced Golf and Country Club

· The Olympic Club



Australia—Peer Review of National Water Recycling Guidelines

Bahrain—Agricultural reuse of tertiary recycled water

Bonaire—Landscape irrigation with recycled water, Control of Nitrogen (for the European Community Fund for Development)

Egypt—Reviewed and Proposed Reform of water reuse code (for USAID)

Georgia RepublicRiver pollution cleanup and water reuse

India—Water reuse in Hyderabad and Nagpur (for USAID)

Israel—Evaluation of treatment system for water reuse (for USAID)

Jordan—Several water reuse projects over past 20 years (for USAID)

Korea—Environmental assessment and mitigation

Kuwait—Reclaimed water use for greenery

Mexico—Evaluation of potable reuse via groundwater recharge

Morocco—Agricultural reuse of secondary effluent

Palestinian Authority—Gaza water reuse and biosolids composting  (for the German Fund for Reconstruction through Dorsche Consult)

Peru—Treatment standards for water reuse

Saudi Arabia—Master plan for Riyadh water reuse

Sri Lanka—Water conservation planning

Syria—Agricultural reuse of effluent

Tunisia—Water reuse in national water supply mix

Turkey—Modeling of collection system for Ankara

United Arab Emirates—training staff in Dubai and Abu Dhabi for delivery of recycled water—TSE, as it is commonly called in the Gulf states.

California Clapper Rail is an endangered species whose habitat is the salt marsh along the margins of San Francisco Bay.  Use of recycled water reduces discharge of fresh water (effluent) into the salt marsh, helping preserve the bird’s habitat.

Pebble Beach Golf Course greens and fairways are irrigated with recycled water from the City of Carmel’s wastewater treatment facility.  The switch to recycled water by all seven “jewel” golf courses began in 1994. 

Newer developments in Riyadh, Saudi Arabia, such as this fabulous desert palace (Twaiq), use recycled water for landscape irrigation.

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The Japanese Garden at the Tillman Water Reclamation Plant in the City of Los Angeles, uses recycled water for irrigation and supply to the  Lake, which supports a variety of fish.  The Japanese Garden boasts some of the most exotic, sensitive, and highly valued plant materials.  Initial skepticism about the potential effects of switching to recycled water was allayed with a pilot project  whereby half of the garden was irrigated with potable water and the other half with recycled water.  After a few years with no differences seen in the two halves, the entire garden was then irrigated with recycled water and that success has continued without interruption since the early 1990s.  The Japanese Garden is a community resource and is venue for many a wedding and celebration.