Whole House Water Softeners in Paloma Creek South

Paloma Creek South is on the lake-water side of a two-source district, at least part of the time. Mustang Special Utility District buys lake water, already treated, from Upper Trinity Regional Water District, and the join between the two systems is the Temple Dane pump station on FM 720, which Upper Trinity describes as a joint station it operates with Mustang. The federal facility record lists Temple Dane three ways: as a Mustang pump station with 2,000 gallon-a-minute pumps, as a 2 million gallon ground storage tank, and as the site of Mustang's Well 17, so purchased lake water and the district's own groundwater meet in the same tanks. Upper Trinity's treated water travels more than 103 miles of pipeline, between Justin and Celina and between Castle Hills and Sanger, averages about 30 million gallons a day across the year, and swings from roughly 15 million gallons a day in winter to more than 60 in summer when irrigation runs. Its 2025 report describes the source water simply as Lewisville and Chapman lakes.

Hardness is where the two waters part company, and only one of them is measured. Mustang's 2025 report puts total hardness in its groundwater at 4.773 ppm as calcium carbonate, 2025 samples from 3.68 through 5.48, with calcium at 1.22 ppm and magnesium at 0.420 ppm, soft on any scale. The mineral content is there in Mustang's well table, just not as hardness: 222 ppm sodium, 530 ppm total alkalinity, 261.4 ppm bicarbonate in the last measurement printed, sulfate 75.7, chloride 23.5, and a pH of 8.8, every one of them a wells result rather than a Paloma Creek South result. That is the chemistry of a deep well in the Trinity and Woodbine sands, where the state water board notes dissolved solids increase with depth, and it is the reverse of the calcium-and-magnesium water a reservoir gathers from the country it drains. For the Upper Trinity water the report prints regulated results only, no hardness, and Upper Trinity's own 2025 report does the same. There is no figure for the blend reaching Paloma Creek South, so this page gives none.

Mustang does not publish a pressure-zone map in its report, so we cannot tell a street south of U.S. 380 which tank it hangs from or how much of its day is lake water. What the record does show is that the swing is seasonal: Upper Trinity's summer deliveries run about four times its winter ones, and when Mustang moved its customers to Stage 2 of its drought plan on July 30, 2026, the notice posted for Paloma Creek residents tied the restrictions to high temperatures reducing the surface water available for treatment while demand strained the distribution system. A tap south of 380 may run soft well water in January and something nearer Dallas's 120 to 155 mg/L figure for the same Lewisville Lake water in July. A free water test reads the day's hardness in grains per gallon, and the softener to buy is the one sized for the hard end of that swing, because it still works in August.

Sources: Mustang SUD 2025 Annual Drinking Water Quality Report · U.S. EPA Envirofacts SDWIS: water system facilities for TX0610036 · Upper Trinity Regional Water District: Water Treatment and Delivery · Upper Trinity Regional Water District 2025 Consumer Confidence Report · Texas Water Development Board: Trinity Aquifer · Paloma Creek districts: Stage 2 in effect · City of Dallas memorandum, December 1, 2023: Community Water Fluoridation Follow Up