Perris Water Hardness & Quality Report (2026)
Water Hardness
2.9 grains per gallon
Source
mixed
pH Level
7.3
neutral = 7.0
Lead
0.002 mg/L
✓ Below action level
TDS
106.1 mg/L
Est. Daily Cost
$0.13
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 Perris, your appliances are currently losing 7% efficiency due to mineral buildup.
| Appliance | In Perris | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 7.9 yrs | 8.5 yrs | -7% |
| Washing Machine | 11.8 yrs | 12 yrs | -2% |
| Water Heater | 13.6 yrs | 15 yrs | -9% |
Regional Water Comparison
How Perris compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Perris, California | 50 mg/L | 3.3 ppt | 🟢 Soft | mixed |
| Sun City, California | 195 mg/L | 7.5 ppt | 🔴 Very Hard | mixed |
| Mead Valley, California | 52 mg/L | 3.4 ppt | 🟢 Soft | mixed |
| Menifee, California | 74 mg/L | 4 ppt | 🟡 Moderately Hard | mixed |
| Lake Elsinore, California | 76 mg/L | 4.1 ppt | 🟡 Moderately Hard | mixed |
National Benchmark
How Perris compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Perris | 50 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Perris's Water Unique?
Local geology and source profile
Perris, California, in the Perris Valley of southwest Riverside County (known for its skydiving at Perris Valley Airport), draws its municipal water supply through the City of Perris Water Division, sourcing from the Eastern Municipal Water District (EMWD) which delivers a blend of State Water Project (SWP) imports (Sacramento–Feather River, Sierra Nevada–Delta origin) and local alluvial groundwater managed through the EMWD service area in southwest Riverside County. Water hardness in Perris measures 50 mg/L — classified as moderately soft.
Perris's very soft supply for an inland Riverside County location reflects the dominance of State Water Project water in the EMWD blend reaching the Perris Valley. The SWP water (Sacramento–Feather River source — very soft, Sierra Nevada granodiorite watershed with minor Delta mixing) is inherently very soft and constitutes a high fraction of EMWD's delivered supply in the Perris Valley zone. Local Perris Valley Basin groundwater is recharged predominantly by SWP spreading operations and tends to track the soft imported water character in the EMWD-served areas. The Perris Valley's consistently soft supply (50 mg/L) is among the lowest hardness readings in inland Southern California, comparable to Hemet (46 mg/L) on the same EMWD supply system.
With hardness at 50 mg/L, Perris residents enjoy very soft water with minimal scale challenges. Soap and shampoo lather well. Faucet aerators and showerheads essentially never develop calcium deposits. 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 (SWP) imports and Western Municipal Water District deliveries via the City of Perris Water Division — the Perris Valley alluvial basin and SWP Sacramento–Feather River source water; very soft supply at 50 mg/L in southwest Riverside County.