La Palma Water Hardness & Quality Report (2026)
Water Hardness
2.6 grains per gallon
Source
mixed
pH Level
7.3
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
94.2 mg/L
Est. Daily Cost
$0.12
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 La Palma, your appliances are currently losing 6% efficiency due to mineral buildup.
| Appliance | In La Palma | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.1 yrs | 8.5 yrs | -5% |
| Washing Machine | 11.9 yrs | 12 yrs | -1% |
| Water Heater | 13.8 yrs | 15 yrs | -8% |
Regional Water Comparison
How La Palma compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ La Palma, California | 45 mg/L | 3.2 ppt | 🟢 Soft | mixed |
| Cerritos, California | 46.5 mg/L | 3.2 ppt | 🟢 Soft | mixed |
| Hawaiian Gardens, California | 177.5 mg/L | 7 ppt | 🟠 Hard | mixed |
| Cypress, California | 74 mg/L | 4 ppt | 🟡 Moderately Hard | mixed |
| Artesia, California | 180.5 mg/L | 7.1 ppt | 🔴 Very Hard | mixed |
National Benchmark
How La Palma compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ La Palma | 45 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes La Palma's Water Unique?
Local geology and source profile
La Palma, California, in Orange County — an Orange County city adjacent to Buena Park and Cypress in north Orange County — receives its water from the Municipal Water District of Orange County (MWDOC), drawing primarily from the State Water Project (SWP) delivered via the Metropolitan Water District of Southern California, with minimal local groundwater blend.
The soft 45 mg/L hardness and very low TDS of 94.2 mg/L are among the softest readings in the entire Orange County dataset — and among the softest for any Southern California community — reflecting the La Palma area's essentially SWP-dominant supply without significant Colorado River blending. The SWP at north Orange County delivers primarily Sierra Nevada snowmelt — Cretaceous granodiorite (insoluble), Jurassic quartz monzonite (insoluble), and minimal calcareous input — producing the soft north Orange County supply in contrast to the harder south Orange County Colorado River-dominant communities (El Camino Real: 145.5 mg/L).
At 45 mg/L, La Palma's water is soft — light scale forms slowly in appliances, dishwashers remain efficient, and bathroom fixtures need occasional cleaning. Semi-annual descaling is appropriate. The PFAS level of 3.2 ppt is low — the Orange County north coastal corridor has limited AFFF military sources directly adjacent, and the SWP Sierra Nevada supply carries minimal PFAS.
Geology & Source: La Palma in Orange County draws from the Municipal Water District of Orange County on the State Water Project (Orange County, north California coast) — the SWP delivers Sierra Nevada snowmelt (Cretaceous granodiorite — mostly insoluble) — California Orange County MWDOC State Water Project Sierra Nevada insoluble supply produces soft water at 45 mg/L with TDS 94.2 mg/L in this Orange County California city.