Hemet Water Hardness & Quality Report (2026)
Water Hardness
2.7 grains per gallon
Source
mixed
pH Level
7.3
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
96.2 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 Hemet, your appliances are currently losing 6% efficiency due to mineral buildup.
| Appliance | In Hemet | 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 Hemet compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Hemet, California | 46 mg/L | 3.2 ppt | 🟢 Soft | mixed |
| East Hemet, California | 146 mg/L | 6.1 ppt | 🟠 Hard | mixed |
| San Jacinto, California | 190.5 mg/L | 7.4 ppt | 🔴 Very Hard | mixed |
| Valle Vista, California | 49 mg/L | 3.2 ppt | 🟢 Soft | mixed |
| Menifee, California | 74 mg/L | 4 ppt | 🟡 Moderately Hard | mixed |
National Benchmark
How Hemet compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Hemet | 46 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Hemet's Water Unique?
Local geology and source profile
Hemet, California, in the San Jacinto Valley of Riverside County, draws its municipal water supply through the City of Hemet Public Services Water Division, sourcing from the Eastern Municipal Water District (EMWD) — receiving a blend of State Water Project (SWP) water delivered via the South Bay Aqueduct and the Advance treatment system, and local San Jacinto Basin groundwater wells in the San Jacinto Valley. EMWD manages water for a large portion of inland southwest Riverside County. Water hardness in Hemet measures 46 mg/L — classified as very soft, remarkably soft for an inland Riverside County location.
Hemet's exceptionally soft supply for inland Southern California reflects the dominance of State Water Project water in the EMWD blend reaching Hemet and the soft character of the San Jacinto Mountains alluvial groundwater. The SWP component (Sacramento–Feather River–Delta origin) is inherently very soft. The San Jacinto Valley Groundwater Basin is recharged by the San Jacinto River originating in the San Jacinto Mountains (Precambrian anorthosite, gneiss, and Cretaceous granodiorite — highly calcium-poor crystalline rock, similar to Menifee). The blend of SWP imports and soft San Jacinto Mountains alluvial recharge keeps Hemet's supply in the very soft range — one of the softest readings in all of Southern California's inland communities.
With hardness at 46 mg/L, Hemet residents enjoy very soft water with minimal scale challenges. Faucet aerators and showerheads essentially never develop calcium deposits. Dishwashers produce spotless glassware. Eastern 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) — State Water Project deliveries, Colorado River Aqueduct (MWD), and the San Jacinto Basin local groundwater via the City of Hemet Public Services Water Division — the San Jacinto Valley alluvial basin recharged by the San Jacinto River from the San Jacinto Mountains Precambrian granodiorite; very soft supply at 46 mg/L in inland Riverside County.