All About Water

Where Does Our Water Come From?

Celina is one of 24 member cities that receive treated water from the Upper Trinity Regional Water District (UTRWD) located in Lewisville, Texas. UTRWD is a regional water conservation and reclamation district created in 1989 to provide wholesale water and wastewater services to the North Texas region. 

UTRWD currently delivers fresh, clean, and dependable drinking water to over 29 cities, towns, and utilities. They reliably sources water to over 270,000 people in Denton County and a portion of Collin County; some of the fastest-growing areas in the state.  

On average, UTRWD treats and delivers around 29 million gallons of water per day, equal to nearly 11 billion gallons of water each year. Member city rates are equal and established by the Upper Trinity Board made up of one member from each entity that it serves. 

For more information about UTRWD, visit today.

Upper Trinity Regional Water District Construction on Lake Ralph Hall updates The construction of Lake Ralph Hall directly impacts the City of Celina and the projected future water needs of our growing community.

How Water is Treated

Before a drop of water ever comes out of your faucet, it undergoes a rigorous eight-step process at one of two plants operated by the Upper Trinity Regional Water District (UTRWD). Using state-of-the-art technology, this process, along with testing from their team of experts, ensures UTRWD-treated water meets all quality requirements. 

The Water Treatment Process

1. Pumping to Treatment
2. Coagulation
3. Flocculation & Sedimentation
4. Ozone Treatment
5. Filtration
6. Disinfection
7. Treated Water Storage
8. Delivery of Drinking Water to Customers


Delivering Your Water

Once treated, the Upper Trinity Regional Water District (UTRWD) delivers clean water through 103 miles of pipeline to over 20 cities, towns, and utilities. This long-ranging pipeline system includes the following assets: 

  •         Elevated Storage Tank/Booster Station
  •        Pump Stations (Stone Hill & Temple Dane)
  •         Water Storage Facilities

Upper Trinity has two water treatment plants - the Taylor plant in Lewisville and the Harpool plant in Providence Village.  The treatment process at both plants assures that Celina residents and customers receive the best drinking water - for both taste and health.


In all, UTRWD's transmission pipelines extend from Justin to Celina and from Castle Hills to Sanger for complete coverage of the entire region.