Dallas County, Texas — public water systems

How does Dallas County compare with other Texas counties?

Dallas County has the 39th-most active public water systems among the 309 counties listed for active Texas systems in EPA records; among the 234 with 3 or more systems, the median has 12. Its systems report 3,183,922 people served in total, the 2nd-largest county figure in the state and 9.4% of the statewide total. The average system here reports serving 90,969 people, about 19 times the Texas average of 4,789. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.

Where does Dallas County's drinking water come from?

By primary water source, Dallas County's active systems draw on purchased surface water (28, 80%), groundwater (5, 14%) and surface water (2, 5.7%). Overall, 14% rely mainly on groundwater (including purchased groundwater) and 86% on surface water, compared with 78% and 21% across Texas. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. The county's largest system, Dallas Water Utility, draws primarily on surface water.

What kinds of water systems operate in Dallas County?

Dallas County's active systems break down as 33 community systems (94%) and 2 non-transient non-community systems (5.7%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. EPA lists their owner types as local government (89%) and private (11%).