Angleton Water Hardness & Quality Report (2026)

Angleton, Texas, in Brazoria County — the Brazoria County seat on the Brazos River coastal plain in the Gulf Coast petrochemical corridor south of Houston, adjacent to Lake Jackson and Clute — receives its municipal water from Brazoria County Municipal Utility Districts or the City of Angleton Water Division, drawing from the Brazos River or the Gulf Coast Aquifer (Chicot Aquifer) in coastal Brazoria County.

The moderately hard 233.5 mg/L hardness and high TDS of 591.1 mg/L reflect Angleton's Gulf Coast supply character. The Brazos River at the coastal plain carry dissolved minerals from the vast Texas interior drainage (calcareous Cretaceous and Permian carbonate and evaporite terrain of the Texas Hill Country and Rolling Plains). The Chicot Aquifer in coastal Brazoria County contains Gulf Coast Pleistocene alluvial sands with elevated dissolved solids from proximity to brackish-water intrusion and the highly mineralized Texas Gulf Coast geology. The combined supply blend produces the moderately hard, high-TDS water characteristic of the Brazoria County coastal plain.

At 233.5 mg/L, Angleton's water is hard — scale builds rapidly in appliances and plumbing. A water softener is recommended. Dishes spot heavily, and bathroom fixtures develop calcium deposits quickly. The PFAS level of 8.0 ppt warrants a certified reverse osmosis drinking water filter — the Brazoria County petrochemical corridor (Texas Gulf Coast — one of the heaviest concentrations of chemical manufacturing in the United States, including major chlorinated-fluorinated chemical producers), Ellington Field (Houston-area military facility), and the Texas Gulf Coast industrial PFAS complex contribute to Angleton's elevated readings.