Whole House Water Softeners in Plano

Plano's taps run on water the North Texas Municipal Water District treats for the city, and Plano's 2024 water quality report sets out the chain. Raw water from Lavon Lake goes to the district's Wylie Water Treatment Plant; since March 2023 the district has also drawn Bois d'Arc Lake water through its Leonard plant; and Lake Texoma, Jim Chapman Lake, Lake Tawakoni and the district's East Fork reuse wetland stand behind both. The report counts seven treatment plants, more than 695 miles of transmission pipeline and 20 pump stations in the district's system. At the Wylie and Leonard plants the district uses ozone as its primary disinfectant, which the report says also breaks down the taste and odor compounds that come with surface water, and chloramines carry the disinfection out into Plano's mains. The city's report for 2025 measures the chloramine left in those mains at 2.59 ppm on average. Plano's own distribution system holds a Superior rating from the Texas Commission on Environmental Quality. EPA's SDWIS records for system TX0430007 list four live district connections feeding four working pump stations, Custer, Ridgeview, Shiloh and Stadium, with 11 ground tanks holding 68 million gallons between them, the largest a 14.0 million gallon tank at Ridgeview, and ten elevated tanks of 1.0 to 2.0 million gallons, all serving 131,133 connections.

Hardness is the part of that lake water the treatment leaves alone. Plano's report lists the Wylie plant's 2024 total hardness at 105 to 202 ppm as calcium carbonate, with 202 ppm the highest result of the year, and that published range is the figure on this page. At 17.1 mg/L to the grain it works out to about 6.1 grains per gallon at the low end and 11.8 at the top: moderately hard in the softest month, very hard in the hardest. The same table shows what the hardness is made of. Calcium ran 35.4 to 66.5 ppm and magnesium 5.88 to 9.84 ppm, total alkalinity ran 56.5 to 128 ppm and total dissolved solids 271 to 509 ppm, sodium reached 88.7 ppm and the pH ran as high as 8.9. The report also prints the Leonard plant's 2024 figures, total hardness 112 to 188 ppm with sodium topping out at 34.5 ppm, but the Wylie row is the one the city's figure rests on. The district itself rates its treated water moderately hard and lays that at the door of Lavon Lake's minerals.

The city says in its own words what these minerals mean at home. Its report lists calcium, sodium and iron as secondary constituents, regulated by the State of Texas rather than the EPA, that can cause taste, color or odor problems without being a cause for health concern, and it invites anyone who notices them to call Public Works. The district's water quality page adds the household side: spots left on dishes as water dries, lime scale on fixtures, and deposits that build up in a water heater over the years, with a licensed plumber suggested for the heater. The SDWIS records also divide Plano into two pressure planes, labeled 795 and 875, with five elevated tanks on each; Ridgeview pumps only into 875, Shiloh only into 795, and Custer and Stadium hold pumps for both. Because the whole city drinks the same district water, the number at a Plano tap moves with the lake and the season rather than with the neighborhood, and a reading taken in a soft month can be close to half the reading taken in a hard one. The practical answer is to size a softener for the 202 ppm end of the range, about 12 grains, and let a metered valve regenerate less often when the water eases; our free water test gives you the day's figure at your own faucet.

Sources: City of Plano - Water Quality Report for Calendar Year 2024 · City of Plano - Water Quality Reports directory · North Texas Municipal Water District - Water Quality · City of Plano - Water Quality Report for Calendar Year 2025 · EPA SDWIS water system facility records records for TX0430007, City of Plano · EPA SDWIS water system record record for TX0430007, City of Plano