Whole House Water Softeners in Forest Hill

Forest Hill owns the pipes and tanks but none of the water. The city's budget describes a looped distribution system of mains from 2 to 12 inches, carrying 65 to 80 pounds of pressure, with 1,000,000 gallons of ground storage and 1,250,000 gallons of elevated storage, a maximum daily system capacity of 2,250,000 gallons and a maximum day on record of 2,400,000 gallons; the water itself, the budget says, is surface water the city purchases from Fort Worth. Forest Hill's 2025 report carries a single source line, Fort Worth system TX2200012, and no well. Behind that line sit Fort Worth's five treatment plants, which the city's own history page puts at a combined 497 million gallons a day, and the Tarrant Regional Water District reservoirs they draw from. The largest of the five is Rolling Hills, rated at 200 million gallons a day, and a Fort Worth planning document notes that Cedar Creek and Richland-Chambers water pumped into Lake Benbrook can be routed to Rolling Hills as well as to the Holly and Westside plants, so what reaches Forest Hill may have started in East Texas.

Forest Hill's report tests what the city controls: a chloramine residual of 1.00 to 3.80 mg/L, lead and copper from 2023 to 2025, and disinfection byproducts at four addresses on Horton Road, Lon Stevenson, Mansfield Highway and Autumn Park. It prints no hardness, calcium or magnesium, and this page states no figure for the city. Fort Worth's own 2025 report fills in the chemistry of the water it sells. Fort Worth's total hardness for its system ran 108 to 150 ppm, measured as calcium carbonate, with 6 to 9 grains per gallon as Fort Worth's conversion, and the two minerals that make up that hardness are listed beside it: calcium at 37.6 to 48.1 ppm and magnesium at only 3.45 to 7.35 ppm. Calcium carries most of the load, which is what reservoirs in limestone country produce. Fort Worth adds that its water is usually hard enough to lay a protective coating inside metal pipes and fixtures, and that it adjusts pH when needed to keep that coating in place. Those are the supplier's figures for the supplier's system, not a Forest Hill measurement.

Still, they describe what lands in Forest Hill's tanks. Fort Worth's own range for its system runs from moderately hard at 108 to hard at 150 on the USGS scale, and the coating Fort Worth counts on inside its mains is the same deposit a Forest Hill water heater collects on its element. Which plant is feeding the south side in a given week, and how far the lakes have dropped, moves the number inside that range; the street does not, and a city with no well and no second supplier has nothing to blend it with. Rather than borrow Fort Worth's figure as if it were Forest Hill's, we measure it: the free water test gives the hardness at your tap, in ppm and grains, and that is what a softener gets sized to.

Sources: City of Forest Hill, 2025 Consumer Confidence Report · City of Forest Hill, FY26 Budget · City of Fort Worth, Water Quality Reports page · City of Fort Worth, Water Department History page · City of Fort Worth, Water and Wastewater Impact Fee Update · City of Fort Worth, Water Supply page