Indio Water Hardness & Quality Report (2026)
Water Hardness
4.9 grains per gallon
Source
mixed
pH Level
7.5
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
199.8 mg/L
Est. Daily Cost
$0.23
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 Indio, your appliances are currently losing 11% efficiency due to mineral buildup.
| Appliance | In Indio | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 10.5 yrs | 12 yrs | -13% |
| Water Heater | 12.2 yrs | 15 yrs | -19% |
Regional Water Comparison
How Indio compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Indio, California | 84.5 mg/L | 4.3 ppt | 🟡 Moderately Hard | mixed |
| Coachella, California | 44 mg/L | 3.1 ppt | 🟢 Soft | mixed |
| La Quinta, California | 50.5 mg/L | 3.3 ppt | 🟢 Soft | mixed |
| Palm Desert, California | 118.5 mg/L | 5.3 ppt | 🟡 Moderately Hard | mixed |
| Rancho Mirage, California | 133 mg/L | 5.7 ppt | 🟠 Hard | mixed |
National Benchmark
How Indio compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Indio | 84.5 mg/L | 🟡 Low |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Indio's Water Unique?
Local geology and source profile
Indio, California, in the Coachella Valley of eastern Riverside County (the eastern gateway of the Palm Springs–Coachella area), draws its municipal water supply from the Coachella Valley Water District (CVWD), sourcing from local groundwater wells tapping the Coachella Valley Aquifer and from the Colorado River Aqueduct via State Water Project and MWD delivery, used to recharge the Indio Subarea through the CVWD spreading basins. CVWD manages both the aquifer and the Colorado River import infrastructure for the Coachella Valley. Water hardness in Indio measures 84.5 mg/L — classified as moderately soft, surprisingly soft for a desert Coachella Valley location.
Indio's unexpectedly soft supply for a desert valley reflects the significant Colorado River Aqueduct recharge component of the Coachella Valley Aquifer in the Indio zone. CVWD actively recharges the aquifer with Colorado River water (MWD/SWP water) via spreading basins — and the Colorado River water delivered through the Coachella Canal and MWD system to the Coachella Valley is actually softer than the direct Mojave Desert aquifer would otherwise be, because it reflects the treated blend of MWD's Colorado River and SWP supply. The natural valley alluvial fill from the San Jacinto Mountains granodiorite is also relatively soft. The combination produces moderately soft finished water in Indio.
With hardness at 84.5 mg/L, Indio residents experience minimal to moderate scale challenges. Faucet aerators and showerheads develop deposits slowly — bi-monthly cleaning with citric acid solution is sufficient. Dishwashers produce clean glassware. CVWD consistently delivers water meeting all California SWRCB and EPA Safe Drinking Water Act requirements.
Geology & Source: Groundwater from the Coachella Valley Water District (CVWD) wells and the State Water Project Colorado River Aqueduct (via CVWD recharge spreading basins) — the Coachella Valley alluvial fan aquifer in the eastern Riverside County desert basin, recharged from the San Jacinto and Santa Rosa Mountains Precambrian–Mesozoic granodiorite plus Colorado River water; soft supply at 84.5 mg/L in the Coachella Valley.