Whole House Water Softeners in Allen

Allen's water utility treats nothing itself; it stores and pumps. The city's 2026 water quality report describes wholesale treated water arriving from the North Texas Municipal Water District into the city's ground storage, then leaving through a pumping and storage station made up of two pump stations, five ground storage tanks holding 24 million gallons and five elevated tanks holding 9 million, with a pumping capacity of 80 million gallons a day. Beyond those tanks run 513.87 miles of water mains serving 34,113 metered connections. The federal SDWIS facility list for system TX0430025 names those stations: Stacy, at 700 East Stacy Road, with 6.0, 3.0 and 3.0 million gallon ground tanks and service pumps rated from 1,950 to 5,100 gallons per minute, and Custer, at 1108 North Custer, with two 6.0 million gallon ground tanks and seven 3,500 gallon-per-minute pumps, with elevated tanks of 2.0 million gallons on Junction Drive, East Main and East Bethany and 1.0 million on South Custer. The report's own rows add 1,320 scheduled bacteriological samples and 1,095 disinfectant residual samples a year, a 2025 lead result of 1 ppb at the 90th percentile with copper at 0.746 ppm, and a service line inventory with no lead, unknown or galvanized lines. The report says the district takes raw water from Lavon Lake and Bois d'Arc Lake and treats it at the Wylie and Leonard plants, with water rights in Lake Texoma, Jim Chapman Lake, Lake Tawakoni and the East Fork wetland project held in reserve to supplement those two lakes. One thing the report does not list is a city well: the only source it names is the district, and it says the district tests every raw water source and the treated water sent to Allen daily.

The figure on this page, 105 to 202 ppm for 2024, is the district's range: moderately hard at the bottom of the year and very hard at the top, or about 6.1 to 11.8 grains per gallon. The city's newest report, covering 2025, prints the Wylie plant at 96.0 to 200 ppm and the Leonard plant at 96.0 to 144 ppm, so the span has barely moved. Behind the hardness number sit the minerals that make it. Wylie water in 2025 carried calcium at 31.2 to 61.3 ppm and magnesium at 6.27 to 9.44 ppm, with total alkalinity from 43.6 to 138 ppm and dissolved solids from 182 to 455 ppm; sodium ran 41.9 to 88.0 ppm. The report groups calcium, sodium and iron as secondary constituents, regulated by the State of Texas rather than the EPA, which can change taste, color and odor without being a health matter. The district itself describes its treated water as moderately hard because of what Lavon Lake carries, and tells homeowners to divide total hardness in mg/L by 17.12 to get grains per gallon.

Because every Allen tap is fed from the same ground storage tanks, hardness does not change from one subdivision to another; it changes with the district's lake blend and the calendar. The low end of the range belongs to the months when the raw water runs softer, the top to the months when it does not, and the report's two-plant table means the city can receive either Wylie or Leonard water in a given stretch. The report also notes that the district finished converting the Wylie plants to ozone for primary disinfection in 2014, a disinfection step that sits alongside, not in place of, the mineral table. For a softener the sensible target is the top of the printed range, about 12 grains per gallon, with a metered valve that regenerates less often when the water runs nearer 105. The free water test gives you the figure at your own tap on the day.

Sources: City of Allen, 2025 Water Quality Report · City of Allen, 2026 Water Quality Report · North Texas Municipal Water District, Water Quality · EPA SDWIS water system record record for TX0430025, City of Allen: population served, system type · EPA SDWIS water system facility records records for TX0430025, City of Allen: 700 E Stacy ground storage 6.0, 3.0 and 3.0 MG