Whole House Water Softeners in Krugerville

Krugerville sits on the well side of Mustang Special Utility District. The federal facility record for the district (TX0610036) lists a chlorination plant, Plant 2, on U.S. 377 in Krugerville, a compliance sampling point at 5066 Highway 377 in Krugerville, and a string of wells running north of town beside U.S. 377 and FM 2931: one 1,500 feet north of Ike Byrom Road at U.S. 377, one south of Joe Allen Road at FM 2931, two near Foutch Road, and the district's Plant 10 at its office at 7985 FM 2931 in Aubrey. A dozen wells are listed as active in all; an older Well 9 at Baseline Road and Corolota Road in Krugerville is marked inactive. The 2025 report says the wells draw on the Trinity and Woodbine aquifers, which the district taps in three counties, and that the district also brings in lake water, treated by Upper Trinity, from Lewisville Lake and Jim Chapman Lake. The federal record describes Plant 2 itself as a small site, two 100 gallon-a-minute pumps and two 30,000 gallon ground tanks, with the district's heavy storage nearby rather than in town: a 1 million gallon elevated tank at FM 2931 and Ike Byrom Road, and a 575,000 gallon ground tank with two 1,792 gallon-a-minute pumps at the FM 2931 station.

The figure on this page, 4.773 ppm of total hardness as calcium carbonate, comes from page 10 of that report, where the district prints secondary constituents for its own groundwater: a 2025 low of 3.68 and high of 5.48 ppm, calcium 1.22, magnesium 0.420. On the USGS scale anything under 60 is soft, and 4.773 ppm works out to about 0.28 grains per gallon, a level at which a softener has almost nothing to remove. The rest of the table explains the number. Sodium is 222 ppm, total alkalinity 530 ppm, total dissolved solids 734 ppm, pH 8.8. The Texas Water Development Board describes Trinity groundwater as very hard but fresh in its outcrop belt, with dissolved solids climbing as wells go deeper downdip; the Mustang wells are the deep kind, rich in dissolved mineral but carrying it as sodium salts rather than as calcium and magnesium. The report prints no hardness result for the Upper Trinity water the district also delivers, and none for the mix in the mains. One other line in Mustang's tables marks the difference between its two waters: fluoride, which the district's own groundwater carried at 1.43 ppm in an April 2025 sample while the Upper Trinity water tested at 0.26 ppm, and the wholesaler adds none.

What arrives at a Krugerville tap depends on how much of the day's supply is coming from the wells around FM 2931 and U.S. 377 and how much is lake water pumped in from the Upper Trinity side of the system, and the 4.773 ppm result describes only the first of those. Lake water runs harder: Dallas, which treats the same lake water at the Bachman and Elm Fork plants, gives 120 to 155 mg/L for its own system. So a Krugerville home can run a dishwasher spot-free for months on well water and then see film on the glassware in a hot August when more lake water is moving. The well figure is the floor of the range, not the ceiling. Size a softener to what the free water test finds at your own kitchen tap, and if the reading comes back under a grain, the honest advice is that the wells are doing the softening for you.

Sources: Mustang SUD 2025 Annual Drinking Water Quality Report · U.S. EPA Envirofacts SDWIS: water system facilities for TX0610036 · Texas Water Development Board: Trinity Aquifer · City of Dallas memorandum, December 1, 2023: Community Water Fluoridation Follow Up · Upper Trinity Regional Water District: Water Sources