The WaterHub at Emory University

Reducing Emory's water footprint

WaterHub Highlights

  • Emory’s WaterHub is a water recycling system that uses eco-engineering processes to clean waste water for future non-potable uses like flushing toilets.
  • Installed in 2015, it is the first system of its kind in the United States.
  • Emory’s WaterHub is capable of recycling up to 400,000 gallons of water each day–nearly 40 percent of Emory’s total campus water needs.

By 2025, we plan to reduce Emory water use by 50 percent, including eliminating drinking water use for heating, cooling, toilet-flushing and other non-potable uses. The WaterHub is a critical part of meeting this goal.

WaterHub Benefits

Emory is located within the X watershed – one of the smallest municipal watersheds in the United States.

The system reduces Emory’s draw of water from Atlanta’s municipal water supply by up to 146 million gallons of water annually, and it is expected to save the University millions of dollars in water utility costs.

The WaterHub includes a 50,000 gallon emergency water reserve, which will allow Emory’s heating and cooling systems to function for an average of seven hours in the event of any disruption in water availability.

How It Works

  • Wastewater enters the WaterHub, and natural processes and technology cleans the water.
  • Water cleaned in the WaterHub is used as process make-up water in Emory’s steam and chiller plants and for toilet flushing in some residence halls.
  • The WaterHub was made possible by an innovative water purchase agreement between Emory University and Sustainable Water, a water reclamation technology provider.
  • The solar-powered facility processes 400,000 gallons a day.


of Emory's total water use is reclaimed by the WaterHub at Emory


million gallons of city potable water were displaced in 2017 by reclaimed Water Hub water (enough to fill an olympic-sized pool 90 times!)


of cooling tower make-up water in 2017 was reclaimed, instead of using potable water