Terrell Water Hardness & Quality Report (2026)
Water Hardness
19.1 grains per gallon
Source
mixed
pH Level
8.5
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
928.8 mg/L
Est. Daily Cost
$0.87
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 Terrell, your appliances are currently losing 44% efficiency due to mineral buildup.
| Appliance | In Terrell | 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 Terrell compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Terrell, Texas | 327.5 mg/L | 10 ppt | 🔴 Very Hard | mixed |
| Forney, Texas | 280 mg/L | 9 ppt | 🔴 Very Hard | mixed |
| Rockwall, Texas | 367.5 mg/L | 10.8 ppt | 🔴 Very Hard | mixed |
| Seagoville, Texas | 229.5 mg/L | 7.9 ppt | 🔴 Very Hard | mixed |
| Mesquite, Texas | 413.5 mg/L | 11.8 ppt | 🔴 Very Hard | mixed |
National Benchmark
How Terrell compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Terrell | 327.5 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Terrell's Water Unique?
Local geology and source profile
Terrell, Texas, in Kaufman County — the Kaufman County seat adjacent to Forney and Kaufman in the east DFW metro corridor — receives its municipal water from the City of Terrell Water Division, drawing from the Lake Tawakoni (Rains/Van Zandt County — Trinity River basin) or local groundwater wells (Kaufman County) through the Terrell treatment system.
The extremely hard 327.5 mg/L hardness and very high TDS of 928.8 mg/L reflect the east DFW Trinity River basin's intense calcareous character. The Trinity River basin at Kaufman County drains the East Texas Blackland Prairie — Cretaceous Austin Chalk (high-purity white chalk — primary hardness source), Cretaceous Taylor Marl (calcareous clay-marl), and Cretaceous Woodbine Formation (slightly calcareous sand). The entire east Texas Blackland Prairie Cretaceous chalk stratigraphy produces extremely hard water throughout the east DFW corridor.
At 327.5 mg/L with TDS 929, Terrell's water is extraordinarily hard. A water softener is essential and critical. Scale forms immediately on all surfaces, appliance lifespans are critically shortened, and water heaters fail within years without softening. The PFAS level of 10.0 ppt warrants a certified reverse osmosis drinking water filter — the Kaufman County DFW east corridor industrial development, the Trinity River PFAS accumulation from the dense DFW metro upstream, and the east Texas PFAS complex contribute to Terrell's very elevated readings.
Geology & Source: Terrell in Kaufman County draws from the Terrell Water Division on the Trinity River and local wells (Kaufman County, east Texas DFW) — the Trinity drains the Cretaceous Austin Chalk and Taylor Marl (calcareous, east Texas Blackland Prairie) — Texas Kaufman County Trinity River Cretaceous calcareous watershed produces extremely hard water at 327.5 mg/L with TDS 928.8 mg/L in this Kaufman County Texas city.