Cedar Hill Water Hardness & Quality Report (2026)
Water Hardness
23.7 grains per gallon
Source
mixed
pH Level
8.5
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
1250.6 mg/L
Est. Daily Cost
$1.00
energy & soap waste
Source: USGS Water Quality Portal · 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 45% efficiency due to mineral buildup.
| Appliance | In Cedar Hill | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 3 yrs | 12 yrs | -75% |
| Water Heater | 5 yrs | 15 yrs | -67% |
Regional Water Comparison
How Cedar Hill compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Cedar Hill, Texas | 405 mg/L | 11.6 ppt | 🔴 Very Hard | mixed |
| Duncanville, Texas | 374.5 mg/L | 11 ppt | 🔴 Very Hard | mixed |
| DeSoto, Texas | 115.5 mg/L | 5.5 ppt | 🟡 Moderately Hard | mixed |
| Midlothian, Texas | 91 mg/L | 5 ppt | 🟡 Moderately Hard | mixed |
| Grand Prairie, Texas | 290 mg/L | 9.2 ppt | 🔴 Very Hard | mixed |
National Benchmark
How Cedar Hill compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Cedar Hill | 405 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Cedar Hill's Water Unique?
Local geology and source profile
Cedar Hill, Texas, in Dallas County southwest of Dallas — a growing southwest Dallas County community known for Cedar Hill State Park on Joe Pool Lake, the historic Cedar Hill town square, and a major African-American suburban community in the southwest DFW Metroplex — draws its municipal water supply from Joe Pool Lake (Mountain Creek watershed) via the Trinity River Authority (TRA) and the City of Cedar Hill Water Utilities. Water hardness in Cedar Hill measures 405 mg/L — classified as extremely hard, among the hardest municipal water supplies in the United States.
Cedar Hill's extraordinarily hard supply reflects the Joe Pool Lake watershed's concentrated Cretaceous calcareous geology. The Mountain Creek and Walnut Creek watershed feeding Joe Pool Lake drains: the Cretaceous Austin Chalk (highly soluble Cretaceous calcareous chalk — one of the most calcareous formations in Texas, cropping out extensively in the southwest Dallas County area); the Cretaceous Woodbine Sandstone (calcareous-cemented formation of the East Texas Basin margin); and the Cretaceous Eagle Ford Shale (calcareous marine shale). Joe Pool Lake is a shallow impoundment with significant evaporative concentration in the hot Texas climate, further concentrating the already highly calcareous Cretaceous watershed supply to the extraordinary 405 mg/L.
At 405 mg/L, Cedar Hill residents face very severe hard water challenges. Scale deposits form extremely rapidly — weekly descaling and immediate appliance protection are strongly recommended. City of Cedar Hill Water Utilities consistently delivers water meeting all Texas TCEQ and EPA Safe Drinking Water Act requirements.
Geology & Source: Surface water from the Trinity River Authority (TRA) Joe Pool Lake via the City of Cedar Hill Water Utilities — the Dallas County Joe Pool Lake–Mountain Creek watershed (Cretaceous Austin Chalk and Woodbine Sandstone calcareous terrain of the Dallas southwest corridor); extremely hard supply at 405 mg/L — among the hardest municipal supplies in the United States, reflecting the concentrated calcareous Cretaceous watershed and high-TDS Joe Pool Lake supply.