Avondale Water Hardness & Quality Report (2026)
Water Hardness
9 grains per gallon
Source
mixed
pH Level
7.8
neutral = 7.0
Lead
0.001 mg/L
✓ Below action level
TDS
316.4 mg/L
Est. Daily Cost
$0.41
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 Avondale, your appliances are currently losing 21% efficiency due to mineral buildup.
| Appliance | In Avondale | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.5 yrs | 8.5 yrs | -47% |
| Washing Machine | 7.9 yrs | 12 yrs | -34% |
| Water Heater | 9.4 yrs | 15 yrs | -37% |
Regional Water Comparison
How Avondale compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Avondale, Arizona | 154 mg/L | 2.4 ppt | 🟠 Hard | mixed |
| Goodyear, Arizona | 401.5 mg/L | 5.4 ppt | 🔴 Very Hard | mixed |
| El Mirage, Arizona | 440 mg/L | 5.8 ppt | 🔴 Very Hard | mixed |
| Sun City, Arizona | 314 mg/L | 4.3 ppt | 🔴 Very Hard | mixed |
| Peoria, Arizona | 316 mg/L | 4.4 ppt | 🔴 Very Hard | mixed |
National Benchmark
How Avondale compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Avondale | 154 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Avondale's Water Unique?
Local geology and source profile
Avondale, Arizona, in west Maricopa County in the Phoenix West Valley (home of Phoenix Raceway), draws its municipal water supply through the City of Avondale Water Resources Division, sourcing from the Central Arizona Project (CAP) Colorado River aqueduct deliveries and the Salt River Project (SRP) reservoir system, treated and distributed in the west Maricopa County area. Avondale is a rapidly growing West Valley city adjacent to Goodyear and Litchfield Park. Water hardness in Avondale measures 154 mg/L — classified as hard.
Avondale's hard supply reflects the Phoenix West Valley supply blend from Colorado River (CAP) and Salt River (SRP) sources, both inherently calcareous. The Colorado River via CAP carries dissolved minerals from the Colorado Plateau (Kaibab Formation, Redwall Limestone, Bright Angel Shale — major carbonate formations of the Grand Canyon and Cataract Canyon reaches). The Salt River watershed through the Tonto National Forest drains the Mogollon Rim Precambrian–Mississippian carbonate belt and the White Mountain Apache volcanic plateau, contributing moderate dissolved calcium. Avondale's 154 mg/L reading is consistent with the west Phoenix metropolitan area supply blend, somewhat lower than east valley cities with higher local groundwater contributions from the calcareous desert basin.
At 154 mg/L, Avondale residents face regular hard water challenges. Scale deposits form on faucet aerators, showerheads, and appliances within weeks — monthly descaling with citric acid solution is standard maintenance. Dishwashers require rinse-aid, and water heaters benefit from annual inspection. City of Avondale Water Resources Division consistently delivers water meeting all Arizona ADEQ and EPA Safe Drinking Water Act requirements.
Geology & Source: Mixed supply from Colorado River (CAP aqueduct) and Salt River (SRP reservoir system) via the City of Avondale Water Resources Division and the Arizona Water Company — the Lower Colorado River calcareous formations and the Arizona Sonoran Desert mineral concentrating environment; hard supply at 154 mg/L in west Maricopa County.