Lake Elsinore Water Hardness & Quality Report (2026)
Water Hardness
4.4 grains per gallon
Source
mixed
pH Level
7.5
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
175.9 mg/L
Est. Daily Cost
$0.20
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 Lake Elsinore, your appliances are currently losing 10% efficiency due to mineral buildup.
| Appliance | In Lake Elsinore | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.1 yrs | 8.5 yrs | -16% |
| Washing Machine | 10.8 yrs | 12 yrs | -10% |
| Water Heater | 12.6 yrs | 15 yrs | -16% |
Regional Water Comparison
How Lake Elsinore compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Lake Elsinore, California | 76 mg/L | 4.1 ppt | 🟡 Moderately Hard | mixed |
| Wildomar, California | 133.5 mg/L | 5.7 ppt | 🟠 Hard | mixed |
| Sun City, California | 195 mg/L | 7.5 ppt | 🔴 Very Hard | mixed |
| Perris, California | 50 mg/L | 3.3 ppt | 🟢 Soft | mixed |
| Murrieta, California | 146 mg/L | 6.1 ppt | 🟠 Hard | mixed |
National Benchmark
How Lake Elsinore compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Lake Elsinore | 76 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Lake Elsinore's Water Unique?
Local geology and source profile
Lake Elsinore, California, in western Riverside County in the Elsinore Valley — a growing Inland Empire community on California's largest natural freshwater lake (Lake Elsinore) at the foot of the Cleveland National Forest — draws its municipal water supply through the Lake Elsinore Valley Municipal Water District (LEVMWD), sourcing from the Eastern Municipal Water District (EMWD) which delivers a blend of Metropolitan Water District (MWD) imported water and local Elsinore Basin groundwater. Water hardness in Lake Elsinore measures 76 mg/L — classified as moderately soft.
Lake Elsinore's soft supply reflects the EMWD–LEVMWD supply blend's dominance of soft MWD State Water Project imports. The EMWD service area in western Riverside County receives a favorable blend of State Water Project Sacramento–Feather River water (very soft, 20–50 mg/L) from the MWD. The local Elsinore Basin groundwater from the Quaternary alluvial fill of the Elsinore Valley (near the Elsinore Fault Zone — a major active fault) has moderate calcareous content from the alluvial fan deposits of the surrounding Santa Ana Mountains and Temescal Range. The resulting blend with the dominant soft SWP MWD imports produces the moderate 76 mg/L supply.
With hardness at 76 mg/L, Lake Elsinore residents enjoy moderately soft water with minimal scale challenges. Lake Elsinore Valley Municipal Water District consistently delivers water meeting all California SWRCB and EPA Safe Drinking Water Act requirements.
Geology & Source: Mixed supply from Eastern Municipal Water District (EMWD) — Metropolitan Water District (MWD) imports (Colorado River Aqueduct and State Water Project) and local Elsinore Basin groundwater via the Lake Elsinore Valley Municipal Water District (LEVMWD) — the Elsinore Basin Quaternary alluvial fill in western Riverside County; moderately soft supply at 76 mg/L — reflecting SWP-dominated MWD imports in the EMWD–LEVMWD supply to the Elsinore Valley.