Water Utility FAQ

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In 1973, Richardson became a North Texas Municipal Water District (NTMWD) Member City joining Farmersville, Forney, Garland, McKinney, Mesquite, Plano, Princeton, Rockwall, Royse City, Wylie and later Allen and Frisco. The NTMWD was officially created by the 52nd Texas legislature in response to requests by local leaders and was given the authority to develop, finance, construct and operate facilities to meet future water needs.

Now, the NTMWD is authorized to acquire, treat and distribute potable water, and to collect, treat and dispose of wastes, both liquid and solid, in order to reduce pollution, conserve and develop the natural resources of Texas. Over 1.6 million people in 55 cities, towns, special utility districts and water supply corporations are served by the NTMWD which receives raw water from Lavon Lake, Lake Texoma, Jim Chapman Lake, Lake Tawakoni and the East Fork Raw Water Supply Project.

Four regional wastewater treatment plants (WWTP) support this system.

  • South Mesquite Creek Regional WWTP in Mesquite
  • Floyd Branch Regional WWTP in Richardson
  • Rowlett Creek Regional WWTP in Plano
  • Wilson Creek Regional WWTP near McKinney

Current Major Water Supplies
Water Source Map

Lower Bois D'arc Creek LogoLower Bois d’Arc Creek (LBCR) Reservoir
The Lower Bois d’Arc Creek Reservoir, once completed, will be the first major reservoir built in Texas in the last 30 years. It is being built to meet the growth needs through 2040. The LBCR will be owned and operated by the NTMWD. The primary purpose of the LBCR will be for water supply, and not for flood control and management. NTMWD is prepared to commence construction of the reservoir when the state and federal permits are received for the project.

For more information about this project, click here.

East Fork Wetland Project
The North Texas Municipal Water District is meeting a pressing need for water with a unique and natural solution. In Kaufman County, plants, not machinery cleanse river water as it flows through lush man-made wetlands. Using this organic process, the wetlands help quench a thirst for water that is growing on a massive scale. This project provides over 102,000 acre-feet of water per year which is the same capacity of water supplied by Lake Lavon. Completed in 2009, this project consists of diverting water from the East Fork of the Trinity River and polishing the water in one of the largest constructed wetlands in the country (1,840 acres). After passage through the wetlands, the water is pumped through an 84” pipeline, 43 miles north of the wetland site to Lake Lavon for storage, blending and water supply use.

Water Quality
The City of Richardson employs a Water Quality Technician who facilitates water sampling to meet standards set by the Environmental Protection Agency (EPA), Texas Commission on Environmental Quality (TCEQ), and Texas Water Development Board (TWDB). These standards require taking daily chlorine residual in each pumping zone, 100 bacteriological samples monthly, pH and THM/HAA5 samples quarterly, Nitrite/Nitrate samples annually, Triennial Lead and Copper samples, and special bacteriological samples for new construction lines. The Water Quality Technician must complete water quality reports to maintain compliance.

Click here to read Consumer Confidence Reports on the quality of the City’s water.

NTMWD Water Treatment Process
NTMWD provides water treatment and delivery at the water treatment plants owned and operated by the NTMWD. In addition, the NTMWD owns and operates the transmission pipelines, pumps, and storage reservoirs necessary to deliver the treated water to Members and Customers in sufficient volumes to meet the daily demands of the citizens served.

Water Treatment Process

NTMWD Wastewater Treatment Process
This process removes large objects from the wastewater by passing the wastewater through screening devices made of metal bars or perforated metal plates. Pass-through openings in these screens are as small as 6 millimeters. Grit classifiers then remove sand that can cause excessive wear on equipment and deposit in unites downstream. Then, in large basics called Primary Clarifiers, the process settles out solids that are heavier than water. These solids are pumped from the bottom of the clarifiers to the dewatering process.

Waste Water Treatment Process

Annual Chlorine Maintenance

The NTMWD conducts annual chlorine maintenance on its water transmission system and customer cities’ distribution systems for a 28-day period. The chlorine maintenance is a water system maintenance function as well as a water conservation measure.

The Texas Commission on Environmental Quality (TCEQ) allows water suppliers to perform chlorine maintenance in order to maintain proper chloramine levels (required by the TCEQ) during the warm weather periods, thus conserving water. The chloramines, a combination of chlorine and ammonia, are used to provide the disinfectant residual in the transmission and distribution systems as required by the TCEQ. Chloramines provide a longer lasting residual disinfection in the water pipelines and water storage facilities.

The chlorine maintenance does not affect water quality, and remains safe for use. Consumers who are sensitive to taste and odor changes in drinking water might notice a slight change during this period, however this palatability change does not alter the quality of the drinking water. For more information, visit www.ntmwd.com.

What is the North Texas Municipal Water District?
Who are the District’s member cities?
Who are the District’s customer cities?
What’s the difference between member and customer cities?
I understand that we are paying for water that we are not able to use through a system known as “take or pay.” What is that?
Why do we use the “take or pay” system?
How much has Richardson spent on water that we did not use?
What is Richardson doing to promote change to the “take or pay” contract?
What does Richardson hope to gain from a contract change?
How much water is Richardson using compared to how much it is paying for?
Why does the district continue to charge if it’s asking us to use less?
Why not just use more water, since we are paying for it anyway?
Can the North Texas Municipal Water District continue to provide water and develop new reservoirs if the rate structure is changed?
Some have suggested that the payments the member cities make under the contract are similar to a mortgage. Is the contract similar to a mortgage?
What is the water rebate?
What’s in the future for Richardson taxpayers if the contract doesn’t change?