The City of Winfield drinking water department produces on average 2 MGD of water and has capacity of 6 MGD. The city has about 4,350 residential 715 commercial customers for its water.
The Winfield Water Treatment facility was operational in 1969, coinciding with the completion of the Winfield City Lake. Currently, all water treated by the City of Winfield is supplied by the city lake.
The city maintains around 130 miles of water distribution lines and 7.7 miles of raw water line from the lake to the water plant.
A 2005 water plant upgrade project included the construction of an ozone water treatment facility. Ozonation of water improves both the aesthetics of water in terms of taste, smell and appearance as well as improtant health criteria such a enhanced disinfection and the reduction of disinfection byproducts.
Winfield is a little unusual in that most ozone systems were supplied to much larger water treatment facilities.