Stephenville Water Hardness & Quality Report (2026)
Water Hardness
5.1 grains per gallon
Source
mixed
pH Level
7.5
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
178.8 mg/L
Est. Daily Cost
$0.23
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 Stephenville, your appliances are currently losing 12% efficiency due to mineral buildup.
| Appliance | In Stephenville | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.7 yrs | 8.5 yrs | -21% |
| Washing Machine | 10.4 yrs | 12 yrs | -13% |
| Water Heater | 12.1 yrs | 15 yrs | -19% |
Regional Water Comparison
How Stephenville compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Stephenville, Texas | 87 mg/L | 4.9 ppt | 🟡 Moderately Hard | mixed |
| Mineral Wells, Texas | 161.5 mg/L | 6.5 ppt | 🟠 Hard | mixed |
| Weatherford, Texas | 209 mg/L | 7.5 ppt | 🔴 Very Hard | mixed |
| Cleburne, Texas | 346.5 mg/L | 10.4 ppt | 🔴 Very Hard | mixed |
| Benbrook, Texas | 238.5 mg/L | 8.1 ppt | 🔴 Very Hard | mixed |
National Benchmark
How Stephenville compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Stephenville | 87 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Stephenville's Water Unique?
Local geology and source profile
Stephenville, Texas, in Erath County — the Erath County seat and the Milk Capital of Texas (historically one of Texas's most significant dairy farming communities), home of Tarleton State University (Texas A&M System) — receives its municipal water from the City of Stephenville Water Utilities, which draws from Lake Stephenville (Bosque River system) or Lake Proctor (Leon River) through the Erath County regional water supply.
The moderately soft 87 mg/L hardness and TDS of 178.8 mg/L are notably softer than most Texas supply systems — reflecting the Erath County watershed's Cross Timbers geology. The Bosque River and Leon River headwaters in Erath County drain the Western Cross Timbers (Pennsylvanian Strawn Group sandstone, shale, and limestone, and the Cisco and Canyon Groups) and the eastern transition of the Edwards Plateau. The Cross Timbers terrain — a sandy post oak woodland band across north-central Texas — has more siliceous sandstone character than the Austin Chalk-dominated Dallas-Fort Worth corridor, producing the moderately soft to soft water characteristic of Erath County.
At 87 mg/L, Stephenville's water is moderately soft — comfortable for household use. Scale forms slowly over months, soap lathers well, and appliances operate efficiently. Semi-annual descaling is adequate. The PFAS level of 4.9 ppt warrants a certified drinking water filter — the Erath County agricultural corridor (dairy farming — PFAS from agricultural runoff), Fort Cavazos (formerly Fort Hood — Leon River watershed AFFF contributor), and the Central Texas military-agricultural PFAS background contribute to Stephenville's readings.
Geology & Source: Stephenville in Erath County draws from the Stephenville Water Utilities or Erath County WSC treating Lake Stephenville or Lake Proctor (Leon River watershed) — the Leon River drains the Cross Timbers (Pennsylvanian limestone, sandstone) and the Edwards Plateau transition — Cross Timbers Pennsylvanian limestone and plateau transition drainage produces moderately soft water at 87 mg/L with TDS 179 mg/L in this Erath County Texas city.