Lawndale Water Hardness & Quality Report (2026)
Water Hardness
8.5 grains per gallon
Source
mixed
pH Level
8
neutral = 7.0
Lead
0.007 mg/L
✓ Below action level
TDS
411.5 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 Lawndale, your appliances are currently losing 19% efficiency due to mineral buildup.
| Appliance | In Lawndale | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.8 yrs | 8.5 yrs | -44% |
| Washing Machine | 8.2 yrs | 12 yrs | -32% |
| Water Heater | 9.8 yrs | 15 yrs | -35% |
Regional Water Comparison
How Lawndale compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Lawndale, California | 145.5 mg/L | 6.1 ppt | 🟠 Hard | mixed |
| Hawthorne, California | 180 mg/L | 7.1 ppt | 🔴 Very Hard | mixed |
| Gardena, California | 72 mg/L | 4 ppt | 🟡 Moderately Hard | mixed |
| Lennox, California | 166.5 mg/L | 6.7 ppt | 🟠 Hard | mixed |
| Redondo Beach, California | 179.5 mg/L | 7.1 ppt | 🟠 Hard | mixed |
National Benchmark
How Lawndale compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Lawndale | 145.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Lawndale's Water Unique?
Local geology and source profile
Lawndale, California, in Los Angeles County — a major south bay Los Angeles County community (Lawndale is in the heart of the South Bay — a primarily residential south Los Angeles County city adjacent to Hawthorne and Gardena, in the corridor between LAX and the Palos Verdes Peninsula), home of multiple South Bay commercial corridors (Lawndale's Artesia Boulevard and Prairie Avenue corridors are significant south bay commercial strips in the Los Angeles County suburban fabric), a diverse Los Angeles County community with a significant Hispanic-American, Filipino-American, and working-class residential population, and adjacent to the South Bay south Los Angeles County defense and aerospace corridor (the South Bay Hawthorne–El Segundo–Torrance corridor is home of major aerospace employers) — draws its municipal water supply via California Water Service South Bay District. Water hardness in Lawndale measures 145.5 mg/L — classified as moderately hard.
Lawndale's moderate hardness reflects the MWD Southern California supply blend. The Metropolitan Water District blends Colorado River (moderately hard, calcareous from Rocky Mountain dissolved minerals) and State Water Project (Sierra Nevada calcareous-poor, soft) supplies. Cal Water South Bay distributes the blend to Lawndale, producing the moderate 145.5 mg/L.
At 145.5 mg/L, Lawndale residents encounter moderate scale accumulation. Monthly cleaning with citric acid solution is recommended. California Water Service consistently delivers water meeting all California DDW and EPA Safe Drinking Water Act requirements.
Geology & Source: Mixed supply from the MWD Colorado River and State Water Project via the California Water Service South Bay District — the Los Angeles County south bay Lawndale corridor (Colorado River calcareous-moderate and Sierra Nevada calcareous-poor State Water Project blend — the south LA County Cal Water South Bay zone; MWD blend with treatment); moderately hard supply at 145.5 mg/L in Los Angeles County.