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REGION: North America
TOPIC: Environment
Online NewsHour
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Posted: April 1, 2008

Experts Discuss Water Reuse

Orange County Groundwater Replenishment Systmem A new treatment plant in Orange County, Calif., is one of about 15 in the country to recycle wastewater back into the groundwater drinking water supply -- a plan called indirect potable reuse. Two experts answered your questions on water recycling.
QUESTIONS
How is what Orange County is doing different from what happens in most water systems in this country?
Is there a better term to describe water reuse than "toilet-to-tap"?
What happens to the sludge from water treatment facilities?
What is the most energy-efficient method of water treatment?
How does wastewater reuse compare to ocean water desalination?
Have there been any recent breakthroughs in water filtering technology?
What about the composting toilet?
Does this system remove pharmaceuticals from wastewater?

In planned indirect potable reuse, highly treated wastewater is recycled back into the drinking water supply via the natural environment, such as an aquifer or other reservoir. Indirect potable reuse plants have been in operation for more than 20 years, but new projects can still generate public outcry. Two experts answer your questions on water reuse.

Shivaji Deshmukh is the director of local resources and finance and also program manager for the Groundwater Replenishment (GWR) System at the Orange County Water District. He is registered civil engineer in California with his masters and bachelor of science degrees in civil and environmental engineering from the University of California, Los Angeles.

Cheryl McGovern is an environmental protection specialist in the Pacific Southwest regional office of the U.S. Environmental Protection Agency, where she serves as the region's water recycling coordinator. She has been with the agency for almost 25 years and has worked on a variety of federal water quality protection programs. She received her degree in environmental studies and planning from California Sonoma State University.

Transcript: Water Recycling Efforts Spark Policy Debate in California


  Main: Water Recycling
RESOURCES
  Slideshow: Inside the Plant
  Forum: Experts Discuss
  Water Reuse
  Map: Potable Reuse Plant Locations
FOR STUDENTS AND TEACHERS
  Lesson Plan
  Understanding Your Water
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