Most of Irving’s water travels from Lake Chapman to Lewisville Lake and is then treated by the City of Dallas. Irving owns water rights for water in Lake Chapman, which was previously known as Cooper Reservoir.
Some City of Irving water is purchased directly from the City of Dallas to supplement the Lake Chapman water.
The City of Dallas uses surface water from the following sources: Lake Grapevine, Lake Ray Hubbard, Lake Ray Roberts, Lake Tawakoni and Lewisville Lake.
