University Park Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
mixed
pH Level
8.1
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
382 mg/L
Est. Daily Cost
$0.40
energy & soap waste
Source: See methodology section below · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In University Park, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In University Park | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How University Park compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ University Park, Texas | ≈ 120–179 mg/L | 10 ppt | 🟠 Hard | mixed |
| Dallas, Texas | ≈ 120–179 mg/L | 5 ppt | 🟠 Hard | reservoir |
| Addison, Texas | ≈ 120–179 mg/L | 65.3 ppt | 🟠 Hard | reservoir |
| Richardson, Texas | ≈ 120–179 mg/L | 72.6 ppt | 🟠 Hard | reservoir |
| Farmers Branch, Texas | ≈ 180+ mg/L | 139.6 ppt | 🔴 Very Hard | reservoir |
National Benchmark
How University Park compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ University Park | ≈ 120–179 mg/L | 🟠 Moderate |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes University Park's Water Unique?
Local geology and source profile
University Park, Texas, receives drinking water from the Dallas County / Park Cities Municipal Utility District (MUD), which operates a treatment plant at 1811 Regal Row, Dallas, TX 75235. The MUD purchases all treated surface water from the North Texas Municipal Water District (NTMWD), serving University Park and neighboring Highland Park in Dallas County. NTMWD sources raw water from Lavon Lake and treats it at the Wylie Water Treatment Plant, distributing to over 1.6 million people across 90 communities in 10 counties.
The supply originates in the Lavon Lake watershed within the Upper Trinity River Basin, draining Cretaceous-period strata of the Gulf Coastal Plain including the Denison Formation (limestone and marl) and overlying Eagle Ford Shale. These carbonate-rich rocks dissolve to impart minerals, while the basin's karst topography enhances ion leaching from Woodbine sands and Trinity limestones. The surface water's chemistry reflects prolonged contact with calcium- and magnesium-bearing formations, yielding a characteristically hard supply prone to scale formation.
Hard water promotes calcium carbonate scale buildup in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan — water heaters may fail 30–50% sooner without mitigation. Dry skin, soap scum, and faded laundry are common household effects. Annual vinegar flushes help, but a water softener is strongly recommended for very hard DFW supplies to prevent appliance damage and extend plumbing life. The system holds a 'Superior Water System' rating from the Texas Commission on Environmental Quality; treatment involves chloramination disinfection, with pH typically 7.5–8.5 in treated DFW surface water.
Geology & Source: Lavon Lake, Upper Trinity River Basin, North Texas; Cretaceous Woodbine, Trinity, and Austin Chalk groups — limestone, sandstone, shale; karst topography and evaporitic deposits enhance calcium and magnesium leaching — hard supply
Other Texas Water Reports
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Frequently Asked Questions
Is University Park's water safe to drink?
Do I need a water softener in University Park?
How does University Park compare to the USA average?
Data Sources & Methodology
Water quality data for University Park is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
Water Hardness
Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.
pH
Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.
TDS — Total Dissolved Solids
Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.
PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances
EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.
Lead
Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.
Appliance Lifespan
Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.