Muscoy Water Hardness & Quality Report (2026)
Water Hardness
8.6 grains per gallon
Source
mixed
pH Level
8
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
418.1 mg/L
Est. Daily Cost
$0.39
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 Muscoy, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Muscoy | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.7 yrs | 8.5 yrs | -45% |
| Washing Machine | 8.1 yrs | 12 yrs | -33% |
| Water Heater | 9.7 yrs | 15 yrs | -35% |
Regional Water Comparison
How Muscoy compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Muscoy, California | 147.5 mg/L | 6.1 ppt | 🟠 Hard | mixed |
| Rialto, California | 48.5 mg/L | 3.3 ppt | 🟢 Soft | mixed |
| San Bernardino, California | 166 mg/L | 6.7 ppt | 🟠 Hard | mixed |
| Colton, California | 82 mg/L | 4.2 ppt | 🟡 Moderately Hard | mixed |
| Bloomington, California | 142 mg/L | 6 ppt | 🟠 Hard | mixed |
National Benchmark
How Muscoy compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Muscoy | 147.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Muscoy's Water Unique?
Local geology and source profile
Muscoy, California, in San Bernardino County — a San Bernardino County unincorporated community adjacent to San Bernardino and Rialto in the Inland Empire — receives its water from the West Valley Water District or San Bernardino Municipal Water, drawing from the Santa Ana River and San Bernardino Basin wells through the Inland Empire distribution.
The hard 147.5 mg/L hardness and TDS of 418.1 mg/L reflect the San Bernardino County supply's hard alluvial basin character — the Quaternary San Bernardino Basin alluvium concentrates calcareous mineral content from the Inland Empire agricultural and urban water cycling, while the Cretaceous San Gabriel Mountains Granodiorite provides insoluble dilution from the headwaters (compare San Bernardino CA: 143/406 in San Bernardino County comparable; Rialto CA: 151/430 in San Bernardino County comparable; Muscoy consistent hard from the same San Bernardino County Santa Ana River Quaternary calcareous supply). The San Bernardino Basin supply — Quaternary San Bernardino Basin alluvium (calcareous — primary hardness contributor), Cretaceous San Gabriel Mountains Granodiorite (insoluble — primary dilutant), and Holocene Santa Ana River alluvium (calcareous — TDS contributor).
At 147.5 mg/L with TDS 418, Muscoy's water is hard — scale builds in appliances. Quarterly descaling is appropriate. The PFAS level of 6.1 ppt warrants a certified drinking water filter. Review West Valley Water District's annual water quality report.
Geology & Source: Muscoy in San Bernardino County draws from the West Valley Water on the Santa Ana River supply (San Bernardino County, Inland Empire California) — the San Bernardino Valley draws from Quaternary San Bernardino Basin alluvium (calcareous) and Cretaceous San Gabriel Mountains Granodiorite (insoluble) — California San Bernardino County Santa Ana River Quaternary calcareous supply produces hard water at 147.5 mg/L with TDS 418.1 mg/L.