Blue Plains Advanced Wastewater Treatment Plant, located at 5000 Overlook Ave SW, Washington, DC 20032, is the largest advanced wastewater treatment plant in the world.
The facility is operated by the District of Columbia Water and Sewer Authority (DC Water). The plant opened in 1938 as a primary treatment facility, and advanced treatment capacity was added in the 1970s and 1980s. The plant has the capacity to treat 384 million gallons of sewage a day.
The effluent that leaves Blue Plains is discharged to the Potomac River and meets some of the most stringent permit limits in the United States.
The Blue Plains Advanced Wastewater Treatment Plant has been instrumental in protecting the environment since the beginning of plant operations in 1983. In 1996, DC Water assumed management of the Blue Plains Plant. The plant has received awards for peak performance from the National Association of Clean Water Agencies for more than 10 consecutive years, and in 2003, received an excellence in management award.
According to en.wikipedia & womanium