Cedar Hill Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
reservoir
pH Level
8.5
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
1250.6 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 Cedar Hill, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Cedar Hill | 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 Cedar Hill compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Cedar Hill, Texas | ≈ 120–179 mg/L | 81.5 ppt | 🟠 Hard | reservoir |
| Duncanville, Texas | ≈ 180+ mg/L | 89.2 ppt | 🔴 Very Hard | reservoir |
| DeSoto, Texas | ≈ 120–179 mg/L | 106 ppt | 🟠 Hard | reservoir |
| Glenn Heights, Texas | ≈ 180+ mg/L | 57.6 ppt | 🔴 Very Hard | reservoir |
| Midlothian, Texas | ≈ 120–179 mg/L | 159.9 ppt | 🟠 Hard | reservoir |
National Benchmark
How Cedar Hill compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Cedar Hill | ≈ 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 Cedar Hill's Water Unique?
Local geology and source profile
The City of Cedar Hill Water Utility serves approximately 48,870 residents in Cedar Hill, Dallas County, Texas. Water is purchased as treated surface water from the City of Dallas, sourced from six major reservoirs — Grapevine, Lewisville, Ray Roberts, Ray Hubbard, Fork, and Tawakoni — along with the Elm Fork of the Trinity River. There are no local treatment plants; the utility receives water processed through Dallas systems. The 2024 and 2023 Consumer Confidence Reports are available on the official city website at cedarhilltx.com/1373/Water-Quality.
The supply originates in the Trinity River watershed, encompassing North Texas reservoirs fed by the Upper Trinity River basin. Underlying Cretaceous Trinity Group formations — including the Glen Rose Limestone and Paluxy Sandstone — dominate the geology, with karst features promoting mineral leaching into surface waters. Though the local Trinity Aquifer is present, it is avoided due to quality issues, leaving reservoir waters influenced by limestone dissolution and evaporative concentration, yielding a hard supply with elevated calcium and magnesium.
At hard levels, scale buildup is noticeable in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan while raising energy costs. Soap lathering is reduced, leading to dry skin and hair. Regular descaling of fixtures and appliances is advised, and a water softener is recommended to extend equipment life. The utility uses chloramines for disinfection. Independent testing flags 14 contaminants above EPA health guidelines, including arsenic from natural soils and 1,2,3-Trichloropropane (TCP) from historical soil fumigants; a water filter is recommended for drinking water.
Geology & Source: Trinity River watershed — Cretaceous Trinity Group (Glen Rose Limestone, Paluxy Sandstone, Woodbine Group); karst limestone dissolution in North Texas reservoir system yields hard supply with elevated calcium and magnesium
Other Texas Water Reports
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Frequently Asked Questions
Is Cedar Hill's water safe to drink?
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How does Cedar Hill compare to the USA average?
Data Sources & Methodology
Water quality data for Cedar Hill 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.