The Colony Water Hardness & Quality Report (2026)

The City of The Colony, Texas, operates a municipal water utility serving 45,000+ residents in Denton County. The utility owns five water wells producing up to 9 million gallons per day: four wells draw from the Trinity Sands Aquifer and one from the Paluxy Aquifer. The city also purchases up to 6 MGD of treated surface water to supplement local groundwater production. NextEra Water Texas, LLC manages the Consumer Confidence Report and confirms all delivered water meets state and federal requirements set by the Texas Commission on Environmental Quality (TCEQ) and EPA.

The Colony's water supply originates from groundwater aquifers underlying North Texas, a region geologically dominated by ancient Cretaceous limestone and chalk deposits from prehistoric seas. Despite the surrounding carbonate-rich geology that typically produces hard water across Texas, the Trinity Sands and Paluxy Aquifer formations in this specific locality yield very soft water at 0.7 GPG. This unusual softness indicates these particular aquifer formations contain less dissolved mineral content than typical North Texas groundwater, resulting in a naturally soft supply with minimal calcium and magnesium.

At very soft hardness levels, residents experience minimal scale buildup in pipes and appliances, excellent soap lathering, and reduced maintenance demands on water heaters and dishwashers. Water softeners are not recommended for very soft water supplies, as they would be unnecessary and could introduce excess sodium. Residents benefit from lower appliance wear, reduced energy costs, and minimal plumbing corrosion risk. According to the 2024 Consumer Confidence Report from NextEra Water Texas, LLC, the water is safe and meets all state and federal requirements; the TCEQ assessment notes some source waters are susceptible to certain contaminants, and third-party sources have flagged nine contaminants above health advocacy guidelines though within legal limits.