Fort Bend County, Texas: drinking water report. Fort Bend County lies southwest of Houston, home to about 870,000 residents in one of the most ethnically…
Fort Bend County lies southwest of Houston, home to about 870,000 residents in one of the most ethnically diverse counties in Texas. Water comes from a mix of groundwater from the Gulf Coast Aquifer and surface water purchased from the City of Houston and the Brazos River Authority. Like neighboring Harris County, decades of groundwater pumping caused subsidence, and the Fort Bend Subsidence District has mandated a shift toward surface water to slow further sinking.
The transition from groundwater to surface water changes the contaminant profile – surface water requires more treatment and produces more disinfection byproducts, while groundwater in this area carries naturally higher mineral content. UCMR5 data shows low-level PFAS detections in county water systems, without the major military or industrial point sources found in Houston proper.
According to the TCEQ's 2024 compliance data, Fort Bend County water systems met federal standards. The primary water quality variability comes from the ongoing source transition – as more surface water enters the blend, residents may notice taste and quality changes.
The groundwater-to-surface-water transition means your water quality is a moving target. What you drink this year may differ from what you drank two years ago.
Check your water for current data specific to your area. A carbon block filter handles the taste changes from increased surface water treatment. For broader protection, reverse osmosis covers PFAS and DBPs. Our water filter guide helps you choose. Pull your detailed report, and see our Texas page for statewide data.