Most of the City of Irving’s water is pumped from Lake Chapman to Lewisville Lake and then treated for Irving by the City of Dallas. Irving owns water rights to water in Lake Chapman, which was previously known as Cooper Reservoir. Some of the City of Irving’s water is purchased directly from the City of Dallas to supplement the Lake Chapman water. View the Irving Water Supply Map (PDF) for more details.
Surface Water Sources
The City of Dallas uses surface water from the following seven sources:
Lake Ray Hubbard
Elm Fork of the Trinity River
Lake Ray Roberts
The City of Irving continues to search for water supplies. For more information about Lake Chapman, contact Water Pumping Supervisor David Johnson at (972) 734-1095. Visit the U.S. Army Corps of Engineers website for current elevation information for Lake Chapman.