Humble Water Hardness & Quality Report (2026)
Water Hardness
15.2 grains per gallon
Source
mixed
pH Level
8.5
neutral = 7.0
Lead
0.005 mg/L
✓ Below action level
TDS
684.2 mg/L
Est. Daily Cost
$0.70
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 Humble, your appliances are currently losing 35% efficiency due to mineral buildup.
| Appliance | In Humble | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.5 yrs | 8.5 yrs | -82% |
| Washing Machine | 3.9 yrs | 12 yrs | -68% |
| Water Heater | 5.2 yrs | 15 yrs | -65% |
Regional Water Comparison
How Humble compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Humble, Texas | 261 mg/L | 8.6 ppt | 🔴 Very Hard | mixed |
| Atascocita, Texas | 328 mg/L | 10 ppt | 🔴 Very Hard | mixed |
| Aldine, Texas | 130.5 mg/L | 5.8 ppt | 🟠 Hard | mixed |
| New Caney, Texas | 150 mg/L | 6.2 ppt | 🟠 Hard | mixed |
| Spring, Texas | 352.5 mg/L | 10.5 ppt | 🔴 Very Hard | mixed |
National Benchmark
How Humble compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Humble | 261 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Humble's Water Unique?
Local geology and source profile
Humble, Texas, in Harris County — a Harris County city adjacent to Kingwood and Atascocita in the north Houston metro — receives its municipal water from the City of Humble or the Harris County Municipal Utility District, drawing from the Gulf Coast Aquifer (Chicot and Evangeline aquifer units, north Harris County) through the north Houston distribution system.
The very hard 261 mg/L hardness and high TDS of 684.2 mg/L reflect the north Houston Gulf Coast Aquifer's intensely calcareous and evaporitic character — somewhat harder than the north Houston Lake Houston surface water supply (Aldine: 130.5 mg/L), confirming Humble draws primarily from the deep Gulf Coast groundwater rather than the San Jacinto River. The Gulf Coast Aquifer (Chicot-Evangeline units) at north Harris County is developed in Pleistocene Chicot sand (calcareous cemented sand and clay), Pliocene Evangeline Formation (calcareous — primary hardness source), and saline Miocene confining clay (TDS contributor). The deep Evangeline evaporitic and calcareous loading drives Humble's very hard supply.
At 261 mg/L with TDS 684, Humble's water is very hard. A water softener is strongly recommended. Scale builds rapidly on all surfaces, appliance lifespans are significantly shortened, and water heaters require annual descaling without softening. The PFAS level of 8.6 ppt warrants a certified reverse osmosis drinking water filter — the Harris County north Houston industrial corridor and the Gulf Coast Aquifer PFAS background from the Houston industrial complex contribute to Humble's elevated readings.
Geology & Source: Humble in Harris County draws from the Humble Water Division on the Gulf Coast Aquifer (Harris County, north Texas) — the Gulf Coast Aquifer at north Harris County is developed in Pleistocene Chicot and Pliocene Evangeline sands (calcareous, evaporitic clay confining layers) — Texas Harris County Gulf Coast Aquifer Pleistocene-Pliocene evaporitic-calcareous system produces very hard water at 261 mg/L with TDS 684.2 mg/L in this Harris County Texas city.