Whole House Water Softeners in Arlington

Arlington's water is made at two city plants, Pierce-Burch on Lakewood Drive, built in 1972 and rated at 75 million gallons a day, and John F. Kubala, and between them the city says they produce more than 18 billion gallons of tap water a year. The raw water is bought from the Tarrant Regional Water District and comes from four reservoirs: Cedar Creek, Richland-Chambers, Lake Arlington and Lake Benbrook. The district owns the two eastern lakes and uses Arlington and Benbrook as storage, and it moves the eastern water back toward Tarrant County through more than 250 miles of pipeline. The treatment train, as the 2025 report describes it, runs ozone as the primary disinfectant, made on site by converting oxygen, with hydrogen peroxide alongside it, then aluminum sulfate and a cationic polymer to gather particles so they settle, then filtration through beds of granular activated carbon, and chloramine added as the water goes to storage so it stays disinfected out to the taps. The city's laboratory took 7,423 samples and ran 17,388 analyses on the water in 2025. Pierce-Burch is partway through a 112.5 million dollar rebuild of its chemical feed, clearwells and high-service pumps, with two new underground clearwells of 8 million gallons each.

The 2025 report prints total hardness averaging 94 ppm as calcium carbonate, across a range of 80.4 to 110 ppm. That is the figure for the city. The USGS scale puts the whole range in its moderately hard band, which runs from 61 to 120; converted, it is about 5.5 grains per gallon on average, from about 4.7 at the low end to about 6.4 at the top. Nothing in the treatment train changes it. The district says it does no treatment of its raw water for drinking, so the minerals arrive from the lakes, and ozone, coagulation and carbon filtration remove microbes, particles and taste and odor compounds, not dissolved calcium and magnesium. The city's own guidance reflects that: its water-quality page tells residents who want to change the hardness of their water to do their own research into home treatment, and its laboratory offers a hardness test to residents for 32.12 dollars. A reservoir's calcium and magnesium are gathered from its watershed, and the two eastern lakes gather from a great deal of East Texas.

Both plants treat the same district blend, so 94 ppm is Arlington's water across the city, and the 80.4 to 110 swing comes from the lakes and the calendar, not from the neighborhood or the age of the street. At this level the signs at home are modest and familiar: a haze on glassware out of the dishwasher, a white edge on faucets and shower doors, and a gradual coating inside the water heater; these are dissolved minerals, not a contaminant. For a softener, the top of the range is the number that counts: a unit sized for about 6.5 grains covers the hardest month the report recorded, and a metered valve regenerates less often when the blend eases toward 80. Your own tap's reading from the free water test, taken on the day, is the one we size to.

Sources: City of Arlington — 2025 Water Quality Report, joomag viewer · City of Arlington — Pierce-Burch Water Treatment Plant Project · Arlington Water Utilities — Drinking Water Quality Questions · Tarrant Regional Water District — Water Supply · Tarrant Regional Water District — Water Quality