Agua Caliente Water Hardness & Quality Report (2026)
Water Hardness
1.7 grains per gallon
Source
mixed
pH Level
7.2
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
58.4 mg/L
Est. Daily Cost
$0.08
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 Agua Caliente, your appliances are currently losing 4% efficiency due to mineral buildup.
| Appliance | In Agua Caliente | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 8.6 yrs | 8.5 yrs | — |
| Washing Machine | 12.5 yrs | 12 yrs | — |
| Water Heater | 14.4 yrs | 15 yrs | -4% |
Regional Water Comparison
How Agua Caliente compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Agua Caliente, California | 29 mg/L | 2.9 ppt | 🟢 Soft | mixed |
| Petaluma, California | 48.5 mg/L | 3.4 ppt | 🟢 Soft | mixed |
| Napa, California | 151.5 mg/L | 6.4 ppt | 🟠 Hard | mixed |
| Rohnert Park, California | 123.5 mg/L | 5.6 ppt | 🟠 Hard | mixed |
| Novato, California | 110.5 mg/L | 5.3 ppt | 🟡 Moderately Hard | mixed |
National Benchmark
How Agua Caliente compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Agua Caliente | 29 mg/L | 🟢 None |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Agua Caliente's Water Unique?
Local geology and source profile
Agua Caliente, California, in Riverside County — a major Coachella Valley community adjacent to Palm Springs (Agua Caliente is a significant Riverside County community — the area is the historical homeland of the Agua Caliente Band of Cahuilla Indians (one of the most economically significant Native American tribes in California — the Agua Caliente Band's land holdings in Palm Springs and the Coachella Valley are among the most valuable tribal lands in the United States; the tribe owns approximately 6,700 acres of the most valuable urban real estate in Palm Springs and the surrounding area, generating substantial tribal economic enterprise through casinos, hotels, and development)); the Agua Caliente Casino Resort Spa is one of the most significant tribal gaming and resort enterprises in the Coachella Valley; the Agua Caliente hot springs (the original springs that gave the community its name — 'hot water' in Spanish) are the natural thermal springs that have been central to the Cahuilla people's history and culture for thousands of years, a diverse Riverside County community with a significant Cahuilla Native American and resort industry population — draws its municipal water supply via the Desert Water Agency. Water hardness in Agua Caliente measures 29 mg/L — classified as very soft.
Agua Caliente's very soft supply reflects the east Coachella Valley Desert Water Agency supply's excellent treatment. The Desert Water Agency distributes Colorado River and groundwater supply to the Coachella Valley Agua Caliente zone with excellent treatment, producing the very soft 29 mg/L.
With hardness at 29 mg/L, Agua Caliente residents enjoy very soft water. Desert Water Agency consistently delivers water meeting all California SWRCB and EPA Safe Drinking Water Act requirements.
Geology & Source: Reservoir supply from the Colorado River (CVWD blend) via the Desert Water Agency — the Riverside County east Coachella Valley Agua Caliente corridor (Precambrian calcareous-poor San Jacinto Mountain gneiss — the extremely calcareous-poor east Coachella Valley Desert Water Agency supply; excellent treatment); very soft supply at 29 mg/L in Riverside County.