El Paso Water Hardness & Quality Report (2026)
Water Hardness
23.8 grains per gallon
Source
mixed
pH Level
8.5
neutral = 7.0
Lead
0.009 mg/L
✓ Below action level
TDS
1259.4 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 El Paso, your appliances are currently losing 45% efficiency due to mineral buildup.
| Appliance | In El Paso | 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 El Paso compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ El Paso, Texas | 407 mg/L | 11.7 ppt | 🔴 Very Hard | mixed |
| Sunland Park, New Mexico | 169.5 mg/L | 2.3 ppt | 🟠 Hard | groundwater |
| Socorro, Texas | 352 mg/L | 10.5 ppt | 🔴 Very Hard | mixed |
| Socorro Mission Number 1 Colonia, Texas | 353 mg/L | 10.5 ppt | 🔴 Very Hard | mixed |
| Chaparral, New Mexico | 407 mg/L | 4 ppt | 🔴 Very Hard | groundwater |
National Benchmark
How El Paso compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ El Paso | 407 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes El Paso's Water Unique?
Local geology and source profile
El Paso's water is managed by El Paso Water Utilities (EPWU), blending supply from three sources: deep groundwater from the Hueco Bolson aquifer and Mesilla Bolson aquifer underlying the El Paso del Norte basin, and treated surface water from the Rio Grande via the Jonathan Rogers Water Treatment Plant. The Hueco Bolson, once El Paso's primary source, has been significantly depleted over decades of heavy extraction, prompting EPWU to invest in the Kay Bailey Hutchison Desalination Plant — one of the world's largest inland desalination facilities — which processes brackish Hueco Bolson groundwater to augment supply. The blended mix of desalinated brackish groundwater, fresh bolson groundwater, and Rio Grande surface water creates a uniquely complex source chemistry.
El Paso's extreme hardness of 407 mg/L reflects the Chihuahuan Desert geology of the Trans-Pecos region. The Hueco and Mesilla bolsons are deep sedimentary basins filled with Quaternary and Tertiary alluvial sediments overlying Permian and Cretaceous limestone formations — the same carbonate rock types exposed at the surface in the Franklin Mountains immediately north of the city. Groundwater residence times in these desert aquifers are long, allowing extensive calcium carbonate and gypsum dissolution. The Rio Grande carries additional mineral load from its passage through Permian Permian Basin limestone and evaporite formations upstream in New Mexico.
El Paso's extremely hard water creates severe daily challenges for residents: thick white calcium deposits form on shower glass, faucets, and appliance heating elements within days of cleaning. Soap and shampoo performance is very poor, and dishwashers require rinse-aid at every cycle. Water heaters and tankless systems accumulate scale rapidly. A whole-house water softener is essentially necessary for protecting appliances and plumbing, and EPWU recommends regular descaling of water-using appliances. Many El Paso households also use reverse osmosis drinking water systems at the kitchen tap for taste improvement.
Geology & Source: Hueco Bolson and Mesilla Bolson aquifers over Chihuahuan Desert basin fill; Rio Grande surface water crosses Permian limestone — extremely hard