Midlothian Water Hardness & Quality Report (2026)

Midlothian, Texas, in Ellis County southwest of Dallas — known as the "Cement Capital of Texas" for its three major cement plants (TXI, Ash Grove/Summit Midlothian, and Holcim), which take advantage of the local Cretaceous Austin Chalk limestone — receives its municipal water from the City of Midlothian Water Utilities drawing from Bardwell Lake (a U.S. Army Corps of Engineers reservoir on Waxahachie Creek) or from the North Texas Municipal Water District regional supply. Midlothian's supply reflects the softer Ellis County western fringe of the Dallas metro.

The moderately soft 91 mg/L hardness and TDS of 188.3 mg/L are substantially softer than the Fort Worth-Tarrant County supply zone (Benbrook 238.5 mg/L), reflecting the mixed surface water and import character of the Ellis County western supply corridor. Bardwell Lake on Waxahachie Creek drains the Cretaceous Eagle Ford Shale and Austin Chalk uplands of Ellis County — the same formations that make Midlothian's geology famous for cement raw materials. However, the Austin Chalk at this western Ellis County reach produces moderately soft finished water when treated, and the imported North Texas Municipal Water District supply (which draws from multiple east Texas reservoirs with softer watershed geology) contributes to a blended supply significantly softer than the pure Cretaceous carbonate-dominated Fort Worth supply.

At 91 mg/L, Midlothian's water is moderately soft — a comfortable household supply. Scale forms slowly over many months in kettles and appliances, soap lathers well, and the dishwasher produces clean results. Semi-annual descaling of heating appliances is adequate. The PFAS level of 5.0 ppt warrants a certified drinking water filter — the Ellis County cement manufacturing complex, the industrial parks along the U.S. 287 corridor, and the broader Dallas-Fort Worth metroplex industrial footprint contribute to the regional PFAS background.