Dallas Water Utilities (DWU) has three purification plants, built between 1930 and 1964: Bachman, Elm Fork and the East Side plant, which is currently under expansion. Collectively, they can treat more than one billion gallons of water per day for the Dallas area. Ozone technology is used as a primary disinfectant in the water treatment process and the East Side Plant is currently the largest ozone facility for treating water in North America, with a total of nine, 4,000 pound-per-day ozone generators.
Additionally, DWU owns and operates two wastewater treatment plants – Central and Southside – which have a combined treatment capacity of 300 million gallons per day. While there is currently sufficient water to support the Dallas area, this finite resource will not be able to sustain future growth without conservation, reuse and additional supply.
Dallas is expected to more than double, from 2.3 million to over five million, by 2060. So the use of ozone for water disinfection is bound to continue to grow with time.