Los Lunas Water Hardness & Quality Report (2026)
Water Hardness
24.5 grains per gallon
Source
groundwater
pH Level
8.5
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
1338.4 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 Los Lunas, your appliances are currently losing 45% efficiency due to mineral buildup.
| Appliance | In Los Lunas | 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 Los Lunas compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Los Lunas, New Mexico | 419 mg/L | 4.1 ppt | 🔴 Very Hard | groundwater |
| South Valley, New Mexico | 428 mg/L | 4.1 ppt | 🔴 Very Hard | groundwater |
| Albuquerque, New Mexico | 171.5 mg/L | 2.3 ppt | 🟠 Hard | groundwater |
| Rio Rancho, New Mexico | 101 mg/L | 1.8 ppt | 🟡 Moderately Hard | groundwater |
| Enchanted Hills, New Mexico | 224.5 mg/L | 2.7 ppt | 🔴 Very Hard | groundwater |
National Benchmark
How Los Lunas compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Los Lunas | 419 mg/L | 🔴 High |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Los Lunas's Water Unique?
Local geology and source profile
Los Lunas, New Mexico, in Valencia County — the Valencia County seat adjacent to Belen and Peralta on the Rio Grande in central New Mexico south of Albuquerque — receives its municipal water from the Los Lunas Water Division, drawing from the Rio Grande Alluvial Aquifer (Valencia County) through the central New Mexico water treatment system.
The extremely hard 419 mg/L hardness and very high TDS of 1338.4 mg/L are among the highest values in this entire dataset — reflecting the central New Mexico Rio Grande Rift aquifer's intensely evaporitic character at the Valencia County position. The Rio Grande Alluvial Aquifer at Valencia County is developed in Quaternary Rio Grande Rift alluvium (highly mineralized — the Rift itself contributes evaporitic dissolution), Permian Yeso Formation (evaporitic gypsum-anhydrite — primary TDS contributor), and Permian San Andres Limestone (calcareous — primary hardness contributor). The Permian Yeso gypsum evaporitic dissolution and the Rio Grande Rift mineralization produce the extreme Los Lunas supply.
At 419 mg/L with TDS 1338, Los Lunas' water is extremely hard. A water softener and reverse osmosis system are essential for all uses. Scale forms almost immediately, appliances fail rapidly without treatment, and direct consumption of untreated water is not recommended at this TDS level. The PFAS level of 4.1 ppt warrants a certified drinking water filter — the Valencia County central New Mexico agricultural-industrial corridor and the Rio Grande PFAS background from Albuquerque metro contribute to Los Lunas' readings.
Geology & Source: Los Lunas in Valencia County draws from the Los Lunas Water Division on the Rio Grande Alluvial Aquifer (Valencia County, central New Mexico) — the Rio Grande alluvial aquifer at Valencia County is developed in Quaternary Rio Grande Rift alluvium (highly mineralized evaporitic) and Permian Yeso Formation evaporitic (gypsum-anhydrite) — New Mexico Valencia County Rio Grande evaporitic aquifer produces extremely hard water at 419 mg/L with TDS 1338.4 mg/L.