City of The Colony Water Company

The City of The Colony maintains and regularly tests our municipal water supply for quality and safety. Our water is meticulously regulated to ensure it meets all standards established by environmental authorities.

The water we provide comes from several sources. Our primary supply includes five city-owned wells producing up to 9 Million Gallons per Day (MGD) from the Trinity Sands Aquifer (four wells) and Paluxy Aquifer (one well). We also purchase up to 6 MGD of treated surface water from Dallas Water Utilities, sourced from reservoirs including Lake Lewisville, Lake Ray Roberts, Lake Ray Hubbard, Lake Tawakoni, and Lake Fork.

For residents in the Austin Ranch area (south of Highway 121 and east of the MYCKET Railroad line), we purchase up to 4 MGD from the City of Plano, which receives its water from North Texas Municipal Water District reservoirs: Lake Lavon, Lake Jim Chapman, and Lake Texoma.

Our state-licensed operators continuously monitor water quality throughout our distribution system according to federal and state regulations. In our most recent water loss audit, The Colony's system reported approximately 11.8% loss of system input volume - a figure we're actively working to improve.

If you have questions about water quality, contaminants, or lead exposure (which can particularly affect pregnant women and young children), please contact our office. We recommend flushing your tap for 30 seconds to 2 minutes after water has been sitting in pipes to minimize potential lead exposure.

Remember that all water, including bottled water, may contain small amounts of some contaminants. The presence of contaminants doesn't necessarily indicate a health risk, as the EPA establishes limits to ensure public safety. For more information about contaminants and potential health effects, please call the EPA's Safe Drinking Water Hotline (1-800-426-4791).

1. Where does City of The Colony water come from?
   City of The Colony supplies purchased surface water to The Colony, Texas.
2. Does City of The Colony test its tap water?
   Yes. Like every public water system, City of The Colony must test its water under the federal Safe Drinking Water Act and publish an annual water quality report (Consumer Confidence Report). Ask the utility for the latest report or look for it on its website.
3. How do I contact City of The Colony?
   Call 972-625-1756 or visit 6800 Main Street, The Colony, TX 75056, or use the contact options on the utility’s website.
4. Does City of The Colony water contain lead?
   Water usually leaves the treatment plant without lead. Lead can enter tap water from older service lines, solder and brass fixtures inside homes, especially when water sits in the pipes. Run the tap before drinking if water has been sitting, and ask the utility about lead testing and service line records.
5. Is City of The Colony water hard?
   Hardness depends on the source and changes over time. The annual water quality report lists hardness, or you can test it at home. If it is above about 7 grains per gallon, a water softener sized to your measured hardness will stop scale and spotting.